[R] R command line: need intelligent command history recall?
Hi all, I am not sure if this feature exists in the R-console command line prompt: In Matlab, if I want to enter a command which is similar to what I have entered before, I can enter a few prefix, then press -, the previous command that matches with this prefix will then appear on this command line, and it saves a lot of our time. For example: abline(lm(new~old)) cor(new, old) ... ... ... many lines entered ... ... now I want to reuse abline(lm(new~old)), R-console provides - functionality to recall old commands, but it trace back one by one, it is slow if abline is way back, say 50 lines above my current command line... it is too slow. In Matlab, I just need to enter ab, then press -, if there is no other ab** between the abline and my current command line, then the console will intelligently recall abline back to me... Very convinient. Does this feature exist in R? Any other good Integrated Developement Environment for R? Perhaps R users are mathematicians and statisticians; but as a software engineer myself, I found a Visual C++-like integrated developement environment is really efficient and time-saving. It and Borland C++ Builder basically sets standard for modern UI design for programming IDEs. To be a good IDE, it really needs to have an embedded inline debugger. I've asked a statistician, he said he never debugged using a break-point, line-by-line execution debugger -- I cannot imagine this. Where is the productivity? I've used Tinn-R. Frankly it is quite creative. It solved the line-by-line execution problem by copying the line and pasted it to R-console automatically. But a lot of times clipboard generates error. And often times the copy and paste within Tinn editor itself are problemetic. For example, I have been never able to select a portion of a line. When I paste a paragraph, it always erases the current line and the following lines, instead of inserting, ... and if I want to select one line, it always select two lines for me... etc. Anyway, I hope there is IDEs that are better than Tinn-R. Thanks a lot! [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] R command line: need intelligent command history recall?
Michael wrote: Hi all, I am not sure if this feature exists in the R-console command line prompt: In Matlab, if I want to enter a command which is similar to what I have entered before, I can enter a few prefix, then press -, the previous command that matches with this prefix will then appear on this command line, and it saves a lot of our time. For example: abline(lm(new~old)) cor(new, old) ... ... ... many lines entered ... ... now I want to reuse abline(lm(new~old)), R-console provides - functionality to recall old commands, but it trace back one by one, it is slow if abline is way back, say 50 lines above my current command line... it is too slow. In Matlab, I just need to enter ab, then press -, if there is no other ab** between the abline and my current command line, then the console will intelligently recall abline back to me... Very convinient. Does this feature exist in R? Any other good Integrated Developement Environment for R? Perhaps R users are mathematicians and statisticians; but as a software engineer myself, I found a Visual C++-like integrated developement environment is really efficient and time-saving. It and Borland C++ Builder basically sets standard for modern UI design for programming IDEs. To be a good IDE, it really needs to have an embedded inline debugger. I've asked a statistician, he said he never debugged using a break-point, line-by-line execution debugger -- I cannot imagine this. Where is the productivity? I've used Tinn-R. Frankly it is quite creative. It solved the line-by-line execution problem by copying the line and pasted it to R-console automatically. But a lot of times clipboard generates error. And often times the copy and paste within Tinn editor itself are problemetic. For example, I have been never able to select a portion of a line. When I paste a paragraph, it always erases the current line and the following lines, instead of inserting, ... and if I want to select one line, it always select two lines for me... etc. Anyway, I hope there is IDEs that are better than Tinn-R. Thanks a lot! Please, submit a bug report to Tinn-R authors, if you want to see it improved. Best, Philippe Grosjean __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] rgl install problem on Solaris 10 X86
On Fri, 3 Feb 2006, Duncan Murdoch wrote: On 2/3/2006 6:37 PM, Dongseok Choi wrote: Hi, Could you help me to install the rgl package on Solaris 10 x86? No, but there have been a lot of changes to it since the last upload to CRAN. You might want to grab a new copy from http://rgl.neoscientists.org/About.html by getting the latest Subversion checkout. I tried to reproduce this, but our Solaris box does not have GL installed. My understanding is that the real problem seems to be that Color.cpp is using undeclared ISO C functions and needs to include #include stdlib.h // for realoc and free #include string.h // for memcpy so please try adding them. As for the -dalign messages, I presume you included them (like -xlibmil) in CXXFLAGS. They are supported by our SunPro compiler, so which version is yours? (In any case, you need to remove it, if I guessed right.) Duncan Murdoch I tried and got the following error messages. When I compiled my R as 64bit, I used the SUN ProW compilers. However, gcc seems to being used below as well as missing some information. Thank you in advance, Dongseok install.packages(rgl) --- Please select a CRAN mirror for use in this session --- * Installing *source* package 'rgl' ... checking for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ANSI C... none needed checking how to run the C preprocessor... gcc -E checking for X... libraries /usr/openwin/lib, headers /usr/openwin/include checking for libpng-config... yes configure: creating ./config.status config.status: creating src/Makevars ** libs CC -xtarget=generic64 -I/export/home/choid/bin/R2.2.1/lib/R/include -I/usr/openwin/include -DHAVE_PNG_H -I/usr/include/libpng12 -I/mounts/devel/SUNWspro/prd/include -I/mounts/devel/GNU/repoz/readline43/include -KPIC -O -xlibmil -dalign -I/mounts/devel/SUNWspro/prod/include -c api.cpp -o api.o CC: Warning: Option -dalign passed to ld, if ld is invoked, ignored otherwise CC -xtarget=generic64 -I/export/home/choid/bin/R2.2.1/lib/R/include -I/usr/openwin/include -DHAVE_PNG_H -I/usr/include/libpng12 -I/mounts/devel/SUNWspro/prd/include -I/mounts/devel/GNU/repoz/readline43/include -KPIC -O -xlibmil -dalign -I/mounts/devel/SUNWspro/prod/include -c Background.cpp -o Background.o CC: Warning: Option -dalign passed to ld, if ld is invoked, ignored otherwise Background.cpp, line 54: Warning: boundingBox hides Shape::boundingBox. 1 Warning(s) detected. CC -xtarget=generic64 -I/export/home/choid/bin/R2.2.1/lib/R/include -I/usr/openwin/include -DHAVE_PNG_H -I/usr/include/libpng12 -I/mounts/devel/SUNWspro/prd/include -I/mounts/devel/GNU/repoz/readline43/include -KPIC -O -xlibmil -dalign -I/mounts/devel/SUNWspro/prod/include -c BBoxDeco.cpp -o BBoxDeco.o CC: Warning: Option -dalign passed to ld, if ld is invoked, ignored otherwise CC -xtarget=generic64 -I/export/home/choid/bin/R2.2.1/lib/R/include -I/usr/openwin/include -DHAVE_PNG_H -I/usr/include/libpng12 -I/mounts/devel/SUNWspro/prd/include -I/mounts/devel/GNU/repoz/readline43/include -KPIC -O -xlibmil -dalign -I/mounts/devel/SUNWspro/prod/include -c Color.cpp -o Color.oCC: Warning: Option -dalign passed to ld, if ld is invoked, ignored otherwise Color.cpp, line 142: Error: The function realloc must have a prototype. Color.cpp, line 159: Error: The function realloc must have a prototype. Color.cpp, line 160: Error: The function memcpy must have a prototype. Color.cpp, line 168: Error: The function free must have a prototype. Color.cpp, line 175: Error: The function realloc must have a prototype. Color.cpp, line 196: Error: The function realloc must have a prototype. Color.cpp, line 247: Error: The function realloc must have a prototype. 7 Error(s) detected. *** Error code 7 make: Fatal error: Command failed for target `Color.o' ERROR: compilation failed for package 'rgl' ** Removing '/export/home/choid/bin/R2.2.1/lib/R/library/rgl' The downloaded packages are in /tmp/Rtmp9Yaawc/downloaded_packages [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford,
Re: [R] R command line: need intelligent command history recall?
I guess you are using Windows, as you do not tell us. History search facilities are available in Rterm.exe, and also in readline as used in the interface on Unix-alikes. Many people use Emacs+ESS. (In all cases I think the search mode is slicker than you describe for Matlab.) And RGui has another mechanism (read on) that is more suited to a GUI. If you would like a history search in RGui.exe, please contribute the code to do so. R is a volunteer project, and this was deliberately not implemented as no Windows user expressed an interest. I think you will find `the productivity' is in using a higher-level language than C. R does have a line-by-line debugger (called debug, so not hard to find). If you want to set breakpoints etc, see package `debug' on CRAN. And the `Writing R Extensions' manual in the R-devel version of R (to become 2.3.0) has a chapter on `Debugging'. I teach 50 or so people to use R/S a year. They end up with different patterns of working. Some use script windows all the time, some use Emacs+ESS, some use a Linux command line/Rterm.exe. I believe it is a mistake to think that `one size fits all'. On Sat, 4 Feb 2006, Michael wrote: Hi all, I am not sure if this feature exists in the R-console command line prompt: In Matlab, if I want to enter a command which is similar to what I have entered before, I can enter a few prefix, then press -, the previous command that matches with this prefix will then appear on this command line, and it saves a lot of our time. For example: abline(lm(new~old)) cor(new, old) ... ... ... many lines entered ... ... now I want to reuse abline(lm(new~old)), Try history(). This pops up a window from which you can submit one or more command lines (or parts of lines). R-console provides - functionality to recall old commands, but it trace back one by one, it is slow if abline is way back, say 50 lines above my current command line... it is too slow. In Matlab, I just need to enter ab, then press -, if there is no other ab** between the abline and my current command line, then the console will intelligently recall abline back to me... Very convinient. Does this feature exist in R? Yes. Any other good Integrated Developement Environment for R? Perhaps R users are mathematicians and statisticians; but as a software engineer myself, I found a Visual C++-like integrated developement environment is really efficient and time-saving. It and Borland C++ Builder basically sets standard for modern UI design for programming IDEs. That is a matter of opinion. If you want us to accept your opinion, you need to give your credentials, and you haven't even told us your name and affiliation. To be a good IDE, it really needs to have an embedded inline debugger. I've asked a statistician, he said he never debugged using a break-point, line-by-line execution debugger -- I cannot imagine this. Where is the productivity? I've used Tinn-R. Frankly it is quite creative. It solved the line-by-line execution problem by copying the line and pasted it to R-console automatically. But a lot of times clipboard generates error. And often times the copy and paste within Tinn editor itself are problemetic. For example, I have been never able to select a portion of a line. When I paste a paragraph, it always erases the current line and the following lines, instead of inserting, ... and if I want to select one line, it always select two lines for me... etc. Anyway, I hope there is IDEs that are better than Tinn-R. Thanks a lot! [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UKFax: +44 1865 272595 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] Permanent assignments
I was wondering if it is possible to have permanent assignments in R pretty much in the same sense that S-Plus works.The reason I am asking this is that I was trying to load a FORTRAN subroutine to R and for some reason it didn't work and R crashed and I lost everything which I hadn't saved with save.image() or other similar functions. I tried adding on.exit(save.image()) to .Last() but it seems that if R crashes it doesn't get executed either. I am not saying that this should be the default behaviour in R but I was wondering if one could have this as an option in R as well. /Mikael PS. In case it matters, I run R 2.2.1 under sparc-sun-solaris2.9. [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Permanent assignments
On Sat, 4 Feb 2006, Mikael Anderson wrote: I was wondering if it is possible to have permanent assignments in R pretty much in the same sense that S-Plus works. It is not possible (a consequence of the scoping differences is that R objects are not self-contained). If you want S-PLUS, you know where to get it. The reason I am asking this is that I was trying to load a FORTRAN subroutine to R and for some reason it didn't work and R crashed and I lost everything which I hadn't saved with save.image() or other similar functions. I tried adding on.exit(save.image()) to .Last() but it seems that if R crashes it doesn't get executed either. Take a look at the R-devel version of R. That has a signal handler that allows you to save your work when it catches a segfault etc. Or you could ensure that you call save.image() before doing anything error-prone. I am not saying that this should be the default behaviour in R but I was wondering if one could have this as an option in R as well. /Mikael PS. In case it matters, I run R 2.2.1 under sparc-sun-solaris2.9. -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UKFax: +44 1865 272595 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Permanent assignments
You may be able to get checkpoint software that will periodically save the state of the computer, including memory, allowing you to roll back to any point. That would not be R specific. I don't know specifically where to get it but maybe someone else knows of or uses such software. On 2/4/06, Mikael Anderson [EMAIL PROTECTED] wrote: I was wondering if it is possible to have permanent assignments in R pretty much in the same sense that S-Plus works.The reason I am asking this is that I was trying to load a FORTRAN subroutine to R and for some reason it didn't work and R crashed and I lost everything which I hadn't saved with save.image() or other similar functions. I tried adding on.exit(save.image()) to .Last() but it seems that if R crashes it doesn't get executed either. I am not saying that this should be the default behaviour in R but I was wondering if one could have this as an option in R as well. /Mikael PS. In case it matters, I run R 2.2.1 under sparc-sun-solaris2.9. [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] all.equal() and which()
How about which(abs(time(data) - 24.211) 1e-7) or the tolerance of your choice. Patrick Burns [EMAIL PROTECTED] +44 (0)20 8525 0696 http://www.burns-stat.com (home of S Poetry and A Guide for the Unwilling S User) tom wright wrote: Please excuse the lack of a complete dataset here, if its needed I'll be happy to provide it. Can anyone show me how to rewrite this? Browse[1] time(data)[24210:24220] [1] 24.209 24.210 24.211 24.212 24.213 24.214 24.215 24.216 24.217 [10] 24.218 24.219 Browse[1] which(time(data)==24.211) numeric(0) I'm assuming its an eps fault but which(all.equal(time(data),24.211)) dosnt seem to work __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] workspace question
Hi Dave, Look at save in Help. R automatically loads the workspace called .Rdata at the beginning of a session. You could rename workspace, and load or save whatever you like. Hank On Feb 3, 2006, at 11:20 AM, Afshartous, David wrote: All, When starting R, how does one prevent the loading the previous workspace which was saved? I'd like to start a new project and save the new image in a different directory, but I'd like to partition this from the old project. Does there exist a better way than just deleting the files associated w/ the old project manually? I looked in the Intro to R manual and searched for workspace and didn't see anything on this aspect. Kind regards, Dave ps - please reply directly to [EMAIL PROTECTED] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting- guide.html __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Glossay of available R functions
Hi Patricia and Alexandre, Start R help, and select the Search Engine Keywords link. This will take you to a page where keywords (including functions) are arranged by topic. It includes base and recommended packages. Also not that on the CRAN website (and mirrors) is a link for Task Views. There, packages are grouped by topic. Hank On Jan 30, 2006, at 6:38 PM, Patricia J. Hawkins wrote: ASA == Alexandre Santos Aguiar [EMAIL PROTECTED] writes: ASA I am new to R and read this list to learn. It is amazing how ASA frequently new functions pop in messages. Useful and timesaving ASA functions like subset (above) must be documented somewhere. ASA Is there a glossary of functions? I'm also new to R, and was wondering the same thing. Took a bunch of tries, but if you run start.help() and then choose Packages, then Base, you will get the list of functions. As a newcomer, I hesitate to suggest this, but maybe there should be a comment on the index page to that effect? -- Patricia J. Hawkins Hawkins Internet Applications www.hawkinsia.com __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting- guide.html __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] R command line: need intelligent command history recall?
On 2/4/2006 3:03 AM, Michael wrote: Hi all, I am not sure if this feature exists in the R-console command line prompt: In Matlab, if I want to enter a command which is similar to what I have entered before, I can enter a few prefix, then press -, the previous command that matches with this prefix will then appear on this command line, and it saves a lot of our time. For example: abline(lm(new~old)) cor(new, old) ... ... ... many lines entered ... ... now I want to reuse abline(lm(new~old)), R-console provides - functionality to recall old commands, but it trace back one by one, it is slow if abline is way back, say 50 lines above my current command line... it is too slow. In Matlab, I just need to enter ab, then press -, if there is no other ab** between the abline and my current command line, then the console will intelligently recall abline back to me... Very convinient. Does this feature exist in R? Any other good Integrated Developement Environment for R? Perhaps R users are mathematicians and statisticians; but as a software engineer myself, I found a Visual C++-like integrated developement environment is really efficient and time-saving. It and Borland C++ Builder basically sets standard for modern UI design for programming IDEs. To be a good IDE, it really needs to have an embedded inline debugger. I've asked a statistician, he said he never debugged using a break-point, line-by-line execution debugger -- I cannot imagine this. Where is the productivity? Writing such a thing is a little tricky, but should be possible if someone devotes enough time to it. A couple of issues are: - R source code currently maintains no connection to the file it came from. That would need to be added for a source level debugger. - Not all R functions come from source code in a file; they may have been entered at the console, produced as the result returned by another function, etc. - Such IDEs tend to be very platform-specific. You can do a lot of work to make a nice IDE on Windows, and not be able to re-use much of it in other platforms. Currently I don't know of anyone actively working on such a thing. I agree with you that source-level IDEs are great for productivity, and I'd probably switch to one if someone else wrote it. However, I am unlikely to ever have time to do the work myself. Duncan Murdoch I've used Tinn-R. Frankly it is quite creative. It solved the line-by-line execution problem by copying the line and pasted it to R-console automatically. But a lot of times clipboard generates error. And often times the copy and paste within Tinn editor itself are problemetic. For example, I have been never able to select a portion of a line. When I paste a paragraph, it always erases the current line and the following lines, instead of inserting, ... and if I want to select one line, it always select two lines for me... etc. Anyway, I hope there is IDEs that are better than Tinn-R. Thanks a lot! [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Glossay of available R functions
Alexandre Patricia, As Bert Gunter periodically points out: Newbies (and others!) may find useful the R Reference Card made available by Tom Short and Rpad at http://www.rpad.org/Rpad/Rpad-refcard.pdf or through the Contributed link on CRAN (where some other reference cards are also linked). It categorizes and organizes a bunch of R's basic, most used functions so that they can be easily found. For example, paste() is under the Strings heading and expand.grid() is under Data Creation. For newbies struggling to find the right R function as well as veterans who can't quite remember the function name, it's very handy. I still keep a hard copy of Tom Short's referncece card handy, as do most of my colleagues at Loyalty Matrix. -- HTH, Jim Porzak Loyalty Matrix Inc. San Francisco, CA On 1/30/06, Patricia J. Hawkins [EMAIL PROTECTED] wrote: ASA == Alexandre Santos Aguiar [EMAIL PROTECTED] writes: ASA I am new to R and read this list to learn. It is amazing how ASA frequently new functions pop in messages. Useful and timesaving ASA functions like subset (above) must be documented somewhere. ASA Is there a glossary of functions? I'm also new to R, and was wondering the same thing. Took a bunch of tries, but if you run start.help() and then choose Packages, then Base, you will get the list of functions. As a newcomer, I hesitate to suggest this, but maybe there should be a comment on the index page to that effect? -- Patricia J. Hawkins Hawkins Internet Applications www.hawkinsia.com __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] functional programming question
Many functional programming languages have a metafunction which does the following: it has two arguments, a function and a list of objects, all of the same type. The argument function itself has two arguments of the same type as all the list objects, and the result of this function also is of the same type. then metafunction(f,list(x1,x2,xn)) produces f(x1,f(x2,f(x3,,f(xn-1,xn)))..) Does R have such a function, or do I need to code it myself? In Scheme (Mathematica), this metafunction is called fold (Fold). -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-39459 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] functional programming question
See: http://finzi.psych.upenn.edu/R/Rhelp02a/archive/54896.html On 2/4/06, Erich Neuwirth [EMAIL PROTECTED] wrote: Many functional programming languages have a metafunction which does the following: it has two arguments, a function and a list of objects, all of the same type. The argument function itself has two arguments of the same type as all the list objects, and the result of this function also is of the same type. then metafunction(f,list(x1,x2,xn)) produces f(x1,f(x2,f(x3,,f(xn-1,xn)))..) Does R have such a function, or do I need to code it myself? In Scheme (Mathematica), this metafunction is called fold (Fold). -- Erich Neuwirth, University of Vienna Faculty of Computer Science Computer Supported Didactics Working Group Visit our SunSITE at http://sunsite.univie.ac.at Phone: +43-1-4277-39464 Fax: +43-1-4277-39459 __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Passing additional paramaters to nlsList(nlme) fit function
The nlsList function does NOT have the common ellipsis (... ) argument to support that. An alternative is use vector to create an object of mode list of the desired length, then in a loop call nls (which does support ...) and store the results in a list. However, this won't produce an object of class nlsList, which means that the methods writted for nlsList will not be available to you. If it were my problem, I might make a local copy of the nlsList function and try to modify it to work, at least for my problem. In this case, nlsList is merely a call to UseMethods. To get beyond that, I requested 'methods(nlsList)' with the following result: nlsList.formulanlsList.selfStart* If you supply your own starting values, you don't need nlsList.selfStart. If you do need it, you can get it via 'getAnywhere(nlsList.selfStart)'; the asterisk (*) says that this function is non-visible, which means that just typing its name won't get it. Then I might use debug to figure out what it's doing and what I want to change. hope this helps. spencer graves Dieter Menne wrote: Hello, nls-users, is it possible to pass additional parameters to the model function that are known and groupwise constant with nlsList? I could not find something like a keep this fixed option in the documentation and the code (my fault...?) The current workaround is to break the problem down into groups and use globals to pass the constant parameters, but it is ugly code and won't work when an over-all nlme is needed. Dieter Menne __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] Refreshing X11 plots
Hi Folks, This question (or very similar) seems to have been asked before, acorsding to R Site Search: Timur Elzhov on June 23 2003 David B. Dahl on March 01 2002 (though the latter appears to have date April 10 2003 according to the search result, but the above is the archive date). Situation: I plot a lot of stuff in an X11 window (device #2), and then with X11() open a new X11 wibdow (device #3) and plot a lot of similar stuff. So, at this stage, device 3 is active. Now I move away from that screen (switching to a different desktop), to do something else; and when I move back to where I was the active display (#3) refreshes itself, but the inactive one (#2) is blank and I have found no trick to get it to refresh itself short of replaying all the commands needed to draw the plot in the first place. This is a similar issue to the one stated in the two mails referred to above, neither of which seems to have received an answer. Is there a way to refresh the plot without re-plotting it from scratch? (R on Linux with X11). With thanks, and best wishes to all, Ted. E-Mail: (Ted Harding) [EMAIL PROTECTED] Fax-to-email: +44 (0)870 094 0861 Date: 04-Feb-06 Time: 19:47:42 -- XFMail -- __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Refreshing X11 plots
Correction to description: see below. On 04-Feb-06 Ted Harding wrote: Hi Folks, This question (or very similar) seems to have been asked before, acorsding to R Site Search: Timur Elzhov on June 23 2003 David B. Dahl on March 01 2002 (though the latter appears to have date April 10 2003 according to the search result, but the above is the archive date). Situation: I plot a lot of stuff in an X11 window (device #2), and then with X11() open a new X11 wibdow (device #3) and plot a lot of similar stuff. So, at this stage, device 3 is active. Now I move away from that screen (switching to a different desktop), to do something else; and when I move back to where I was the active display (#3) refreshes itself, but the inactive one (#2) is blank and I have found no trick to get it to refresh itself short of replaying all the commands needed to draw the plot in the first place. In fact it is apparently the plot on device #2 (the first device opened) which refreshes itself, and the second plot (on device #3) which goes blank and stays blank, regardless of the order in which the plots are created and which device is currently active. Apologies! This is a similar issue to the one stated in the two mails referred to above, neither of which seems to have received an answer. Is there a way to refresh the plot without re-plotting it from scratch? (R on Linux with X11). With thanks, and best wishes to all, Ted. E-Mail: (Ted Harding) [EMAIL PROTECTED] Fax-to-email: +44 (0)870 094 0861 Date: 04-Feb-06 Time: 19:47:42 -- XFMail -- E-Mail: (Ted Harding) [EMAIL PROTECTED] Fax-to-email: +44 (0)870 094 0861 Date: 04-Feb-06 Time: 20:11:18 -- XFMail -- __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] srt relative to figure
Dear R wizards: I would love to write a general function that matches the slope of a plotted line in an xy-plot at a particular x,y location. something like x- (1:10)^2; y- 40:50; plot( x,y, type=l, xlim=c(0,90) ) srt.at5 = text.at.current.plot.with.slope( x, y, 5); text( x[5],y[5], pos=3, srt=srt.at.5); to do this, I first need to compute the function slope around x[5], which is an easy task. alas, the harder task is that I need to scale this by the plot aspect ratio and the axes. How can a function read this from the current plot? (Has someone written such a function, perhaps more embellished, to save me the debugging effort?) Or, is there an alternative to srt, which slopes the text relative to the existing scale? help appreciated. sincerely, /ivo welch [[alternative HTML version deleted]] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] Passing additional paramaters to nlsList(nlme) fit function
Original question... is it possible to pass additional parameters to the model function that are known and groupwise constant with nlsList? I could not find something like a keep this fixed option in the documentation and the code (my fault...?) Spencer Graves spencer.graves at pdf.com writes: The nlsList function does NOT have the common ellipsis (... ) argument to support that. ... If it were my problem, I might make a local copy of the nlsList function and try to modify it to work, at least for my problem. In this case, nlsList is merely a call to UseMethods. To get beyond that, I requested 'methods(nlsList)' with the following result: nlsList.formulanlsList.selfStart* Thanks, Spencer. When I studied the quinModel example (page 380, Pinheiro/Bates) I noted that it is possible to pass non-varying parameters to nlme by not including them in the fixed=... parameter. As quite a few examples in PB used nlsList for the first approximation (and, as far I understand, nlme does it internally anyway) I had missed this feature of nlme, even if the PB- book heavily use-stained. Dieter __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] srt --- slope text with function?
[resent, plus small addition; I do not understand why gmail sent a weird charset.] Dear R wizards: I would love to write a general function that matches the slope of a plotted line in an xy-plot at a particular x,y location. something like x- (1:10)^2; y- 40:50; plot( x,y, type=l, xlim=c(0,90) ) srt.at5 = text.at.current.plot.with.slope( x, y, 5); text( x[5],y[5], pos=3, srt=srt.at.5); to do this, I first need to compute the function slope around x[5], which is an easy task. alas, the harder task is that I need to scale this by the plot aspect ratio and the axes. How can a function read this from the current plot? (Has someone written such a function, perhaps more embellished, to save me the debugging effort?) Or, is there an alternative to srt, which slopes the text relative to the existing scale? *** come to think of it, what I would really like is the ability of text to 'snake' itself along the line itself. I doubt that this is easily possible, but I just wanted to ask. help appreciated. sincerely, /ivo welch __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] image() and text
Dear useRs, I have 4×4 symmetrical matrix ; then I use image(log(my.matrix)) to visualise it. Is there any 'simple' way to add text labels into each cell lie on diagonal of the image plot? Thanks for any pointers... Cheers, Andrej __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] srt --- slope text with function?
On 2/4/2006 3:50 PM, ivo welch wrote: [resent, plus small addition; I do not understand why gmail sent a weird charset.] Dear R wizards: I would love to write a general function that matches the slope of a plotted line in an xy-plot at a particular x,y location. something like x- (1:10)^2; y- 40:50; plot( x,y, type=l, xlim=c(0,90) ) srt.at5 = text.at.current.plot.with.slope( x, y, 5); text( x[5],y[5], pos=3, srt=srt.at.5); to do this, I first need to compute the function slope around x[5], which is an easy task. alas, the harder task is that I need to scale this by the plot aspect ratio and the axes. How can a function read this from the current plot? I haven't done this, but you can presumably work it out from the conversions implied by the fig, fin, plt, and/or usr values. (Has someone written such a function, perhaps more embellished, to save me the debugging effort?) Or, is there an alternative to srt, which slopes the text relative to the existing scale? *** come to think of it, what I would really like is the ability of text to 'snake' itself along the line itself. I doubt that this is easily possible, but I just wanted to ask. Using strsplit and strwidth you should be able to do it, but it will probably look quite ugly. Duncan Murdoch __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] srt --- slope text with function?
Thank you, Duncan. This led me to the info I needed. Here is a
simple utility function that does what I needed---maybe it will come
in helpful for others.
native.slope computes a suitable srt from a function around
a point on a function. This is useful until text() gets
an srt parameter that is relative to the coordinate system.
(Ideally, R would be able to slope along a function.)
native.slope - function( x, y, where.i,
xlim = par()$xaxp, ylim= par()$yaxp,
asp.ratio = (par()$fin)[1]/(par()$fin)[2] ) {
if (where.i=1) { return(0); }
if (where.i=length(y)) { return(0); }
if (length(x)!=length(y)) {
stop(native.slope: Sorry, but x and y must have equal dimensions,
not , length(x), and , length(y), \n); }
# native slope in a 1:1 coordinate system
d= ( (y[where.i-1]-y[where.i+1])/(x[where.i-1]-x[where.i+1]) );
if (is.na(d)) return(0); # we do not know how to handle an undefined
spot at a function!
d.m= (ylim[2]-ylim[1])/(xlim[2]-xlim[1]); # now adjust by the axis scale
if (is.na(d)) stop(native.slope: internal error, I do not have
sensible axis dimensions (, xlim, ylim, )\n);
if (is.na(asp.ratio)) stop(native.slope: internal error, I do not
have a reasonable drawing aspect ratio);
net.slope= d/asp.ratio/d.m;
return(slope = atan(net.slope)/pi*180.0 )
}
# some test code
x- seq(-10,20,by=0.1)
y- x*x;
plot( x, y, type=l );
display= ((1:length(y))%%40 == 0)
for (i in 1:(length(y))) {
if (display[i]) {
points(x[i],y[i], pch=19);
srt= native.slope( x, y, i );
text( x[i], y[i], paste(i,=,x[i],=,srt), srt=srt, cex=0.9 );
}
}
On 2/4/06, Duncan Murdoch [EMAIL PROTECTED] wrote:
On 2/4/2006 3:50 PM, ivo welch wrote:
[resent, plus small addition; I do not understand why gmail sent a
weird charset.]
Dear R wizards:
I would love to write a general function that matches the slope of a plotted
line in an xy-plot at a particular x,y location. something like
x- (1:10)^2; y- 40:50;
plot( x,y, type=l, xlim=c(0,90) )
srt.at5 = text.at.current.plot.with.slope( x, y, 5);
text( x[5],y[5], pos=3, srt=srt.at.5);
to do this, I first need to compute the function slope around x[5], which is
an easy task. alas, the harder task is that I need to scale this by the
plot aspect ratio and the axes. How can a function read this from the
current plot?
I haven't done this, but you can presumably work it out from the
conversions implied by the fig, fin, plt, and/or usr values.
(Has someone written such a function, perhaps more embellished, to save me
the debugging effort?)
Or, is there an alternative to srt, which slopes the text relative to the
existing scale?
*** come to think of it, what I would really like is the ability of
text to 'snake' itself along the line itself. I doubt that this is
easily possible, but I just wanted to ask.
Using strsplit and strwidth you should be able to do it, but it will
probably look quite ugly.
Duncan Murdoch
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] srt --- slope text with function?
Some more experimentation reveals that I need to also adjust for the
plot dimensions. (And there are other issues I probably do not know
yet and totally misprogrammed...just trying to be helpful.)
native.slope - function( x, y, where.i,
xlim = par()$xaxp, ylim= par()$yaxp,
asp.ratio = (par()$fin)[1]/(par()$fin)[2],
debug =0) {
if (where.i=1) { return(0); }
if (where.i=length(y)) { return(0); }
if (length(x)!=length(y)) {
stop(native.slope: Sorry, but x and y must have equal dimensions,
not , length(x), and , length(y), \n); }
# native slope in a 1:1 coordinate system
d= ( (y[where.i-1]-y[where.i+1])/(x[where.i-1]-x[where.i+1]) );
if (is.na(d)) return(0); # we do not know how to handle an undefined
spot at a function!
d.m= (ylim[2]-ylim[1])/(xlim[2]-xlim[1]); # now adjust by the axis scale
if (is.na(d)) stop(native.slope: internal error, I do not have
sensible axis dimensions (, xlim, ylim, )\n);
if (is.na(asp.ratio)) stop(native.slope: internal error, I do not
have a reasonable drawing aspect ratio);
## alas, we also need to take into account the plot region:
pq= par()$plt; plt.distort= (pq[2]-pq[1])/(pq[4]-pq[3]);
net.slope= d/asp.ratio/d.m / plt.distort;
slope = atan(net.slope)/pi*180.0;
if (debug) {
cat(xlim=, par()$xaxp, \n);
cat(ylim=, par()$yaxp, \n\n);
cat(native.slope: d=, d, (,y[where.i-1],y[where.i+1],
x[where.i-1], x[where.i+1],),
d.m=,d.m, (, ylim[2],ylim[1],xlim[2],xlim[1], ),
asp.ratio=, (par()$fin)[1], :, (par()$fin)[2], ==, net.slope,
=, slope, deg\n);
}
return( slope = slope );
}
On 2/4/06, ivo welch [EMAIL PROTECTED] wrote:
Thank you, Duncan. This led me to the info I needed. Here is a
simple utility function that does what I needed---maybe it will come
in helpful for others.
native.slope computes a suitable srt from a function around
a point on a function. This is useful until text() gets
an srt parameter that is relative to the coordinate system.
(Ideally, R would be able to slope along a function.)
[old function deleted]
# some test code
x- seq(-10,20,by=0.1)
y- x*x;
plot( x, y, type=l );
display= ((1:length(y))%%40 == 0)
for (i in 1:(length(y))) {
if (display[i]) {
points(x[i],y[i], pch=19);
srt= native.slope( x, y, i );
text( x[i], y[i], paste(i,=,x[i],=,srt), srt=srt, cex=0.9 );
}
}
On 2/4/06, Duncan Murdoch [EMAIL PROTECTED] wrote:
On 2/4/2006 3:50 PM, ivo welch wrote:
[resent, plus small addition; I do not understand why gmail sent a
weird charset.]
Dear R wizards:
I would love to write a general function that matches the slope of a
plotted
line in an xy-plot at a particular x,y location. something like
x- (1:10)^2; y- 40:50;
plot( x,y, type=l, xlim=c(0,90) )
srt.at5 = text.at.current.plot.with.slope( x, y, 5);
text( x[5],y[5], pos=3, srt=srt.at.5);
to do this, I first need to compute the function slope around x[5], which
is
an easy task. alas, the harder task is that I need to scale this by the
plot aspect ratio and the axes. How can a function read this from the
current plot?
I haven't done this, but you can presumably work it out from the
conversions implied by the fig, fin, plt, and/or usr values.
(Has someone written such a function, perhaps more embellished, to save me
the debugging effort?)
Or, is there an alternative to srt, which slopes the text relative to the
existing scale?
*** come to think of it, what I would really like is the ability of
text to 'snake' itself along the line itself. I doubt that this is
easily possible, but I just wanted to ask.
Using strsplit and strwidth you should be able to do it, but it will
probably look quite ugly.
Duncan Murdoch
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] srt --- slope text with function?
I don't think it's got the slope exactly right - you'll see this if you
go to a really extreme aspect ratio by changing the shape of a window to
be long and thin before you call your code. To fix this:
- use usr rather than xaxp and yaxp to get the limits of the
plot region in user coordinates; those two refer to the ticks, not the
whole plot region as usr does.
- fin is the whole figure region, not just the plot region; you need
to use plt to modify it to find the plot region within it. So I think
the aspect ratio should really be done as
pars - par(fin, plt)
asp.ratio - (diff(pars$plt)[1]*pars$fin[1]) /
(diff(pars$plt)[3]*pars$fin[2])
Some other suggestions:
- split the function into two: one that determines a slope from the
data, and one that converts a slope to an angle suitable for srt. (I
think the latter would have pretty wide use; the former is pretty
specialized for data the way you're using it).
- use the fact that defaults in a function call can be local variables
in the function, so that you only need one call to par() instead of 4.
(The 4 calls probably take a negigible amount of time, but it just looks
wasteful to make them.)
Duncan Murdoch
On 2/4/2006 5:19 PM, ivo welch wrote:
Thank you, Duncan. This led me to the info I needed. Here is a
simple utility function that does what I needed---maybe it will come
in helpful for others.
native.slope computes a suitable srt from a function around
a point on a function. This is useful until text() gets
an srt parameter that is relative to the coordinate system.
(Ideally, R would be able to slope along a function.)
native.slope - function( x, y, where.i,
xlim = par()$xaxp, ylim= par()$yaxp,
asp.ratio = (par()$fin)[1]/(par()$fin)[2] ) {
if (where.i=1) { return(0); }
if (where.i=length(y)) { return(0); }
if (length(x)!=length(y)) {
stop(native.slope: Sorry, but x and y must have equal dimensions,
not , length(x), and , length(y), \n); }
# native slope in a 1:1 coordinate system
d= ( (y[where.i-1]-y[where.i+1])/(x[where.i-1]-x[where.i+1]) );
if (is.na(d)) return(0); # we do not know how to handle an undefined
spot at a function!
d.m= (ylim[2]-ylim[1])/(xlim[2]-xlim[1]); # now adjust by the axis scale
if (is.na(d)) stop(native.slope: internal error, I do not have
sensible axis dimensions (, xlim, ylim, )\n);
if (is.na(asp.ratio)) stop(native.slope: internal error, I do not
have a reasonable drawing aspect ratio);
net.slope= d/asp.ratio/d.m;
return(slope = atan(net.slope)/pi*180.0 )
}
# some test code
x- seq(-10,20,by=0.1)
y- x*x;
plot( x, y, type=l );
display= ((1:length(y))%%40 == 0)
for (i in 1:(length(y))) {
if (display[i]) {
points(x[i],y[i], pch=19);
srt= native.slope( x, y, i );
text( x[i], y[i], paste(i,=,x[i],=,srt), srt=srt, cex=0.9 );
}
}
On 2/4/06, Duncan Murdoch [EMAIL PROTECTED] wrote:
On 2/4/2006 3:50 PM, ivo welch wrote:
[resent, plus small addition; I do not understand why gmail sent a
weird charset.]
Dear R wizards:
I would love to write a general function that matches the slope of a plotted
line in an xy-plot at a particular x,y location. something like
x- (1:10)^2; y- 40:50;
plot( x,y, type=l, xlim=c(0,90) )
srt.at5 = text.at.current.plot.with.slope( x, y, 5);
text( x[5],y[5], pos=3, srt=srt.at.5);
to do this, I first need to compute the function slope around x[5], which is
an easy task. alas, the harder task is that I need to scale this by the
plot aspect ratio and the axes. How can a function read this from the
current plot?
I haven't done this, but you can presumably work it out from the
conversions implied by the fig, fin, plt, and/or usr values.
(Has someone written such a function, perhaps more embellished, to save me
the debugging effort?)
Or, is there an alternative to srt, which slopes the text relative to the
existing scale?
*** come to think of it, what I would really like is the ability of
text to 'snake' itself along the line itself. I doubt that this is
easily possible, but I just wanted to ask.
Using strsplit and strwidth you should be able to do it, but it will
probably look quite ugly.
Duncan Murdoch
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] saving a character vector
Hi R users
I wrote a function that generates some character strings.
generate.index-function(n.item){
for (i in 1:n.item)
{
for (j in ((i+1):n.item))
{
cat(i,formatC(i,digits=2,flag=0),.,formatC(j,digits=2,flag=0),\n,sep=)
}
}
}
I like to save what appears on the screen when I run using
generate.index(10) as a character vector
I used
temp - generate.index(10)
but it didn't work.
Could you provide some advice on this issue?
Thanks in advance
TM
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[R] Mixed models and missing p-value...
Dear R-users, I computed a simple mixed models which was: mod-lmer(nb ~ site + (1|patelle),tr) The output was: Linear mixed-effects model fit by REML Formula: nb ~ site + (1 | patelle) Data: tr AIC BIClogLik MLdeviance REMLdeviance 1157.437 1168.686 -574.7184 1164.523 1149.437 Random effects: Groups NameVariance Std.Dev. patelle (Intercept) 34.995 5.9157 Residual 744.736 27.2899 # of obs: 123, groups: patelle, 33 Fixed effects: Estimate Std. Error t value (Intercept) 60.3483 4.3929 13.7378 siteLCN -20.1969 7.8070 -2.5870 siteLCS -18.2154 6.1514 -2.9612 Correlation of Fixed Effects: (Intr) sitLCN siteLCN -0.563 siteLCS -0.714 0.402 I don't understand why D.F. and p-values associated to the fixed-effects coefficients are missing. Could anyone help me? When I tried another model (mod2-lmer(nb ~ site + (1|patelle),tr,family=poisson)), D.F. and p-values were given... Thank you in advance. Very sincerely, Simon BLANCHET Simon PhD student Université Laval - Québec-Océan / CIRSA Pavillon Alexandre-Vachon Local 8022 Québec (Québec), Canada G1K 7P4 Téléphone : (418) 656-2131 poste 8022 courriel : [EMAIL PROTECTED] __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] saving a character vector
Am Samstag, den 04.02.2006, 17:46 -0600 schrieb Taka Matzmoto:
Hi R users
I wrote a function that generates some character strings.
generate.index-function(n.item){
for (i in 1:n.item)
{
for (j in ((i+1):n.item))
{
cat(i,formatC(i,digits=2,flag=0),.,formatC(j,digits=2,flag=0),\n,sep=)
^
replace cat with return
}
}
}
I like to save what appears on the screen when I run using
generate.index(10) as a character vector
I used
temp - generate.index(10)
but it didn't work.
Could you provide some advice on this issue?
Thanks in advance
TM
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Re: [R] saving a character vector
Dear Dominik,
Replacing cat() with return() won't do the trick, I think: First, it will
return only the first time through the inner loop; second, it will call
return with several values.
I think that Taka probably had in mind something like:
generate.index-function(n.item){
result - rep(, n.item*(n.item-1)/2)
index - 0
for (i in 1:(n.item - 1))
{
for (j in ((i+1):n.item))
{
index - index + 1
result[index] - paste(i, formatC(i, digits=2, flag=0),
.,
formatC(j, digits=2, flag=0), sep=)
}
}
result
}
For example:
generate.index(4)
[1] i001.002 i001.003 i001.004 i002.003 i002.004 i003.004
Note that I corrected the range of the outer (i) loop.
I hope this helps,
John
John Fox
Department of Sociology
McMaster University
Hamilton, Ontario
Canada L8S 4M4
905-525-9140x23604
http://socserv.mcmaster.ca/jfox
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Dominik Heier
Sent: Saturday, February 04, 2006 6:57 PM
To: Taka Matzmoto
Cc: r-help@stat.math.ethz.ch
Subject: Re: [R] saving a character vector
Am Samstag, den 04.02.2006, 17:46 -0600 schrieb Taka Matzmoto:
Hi R users
I wrote a function that generates some character strings.
generate.index-function(n.item){
for (i in 1:n.item)
{
for (j in ((i+1):n.item))
{
cat(i,formatC(i,digits=2,flag=0),.,formatC(j,digits=2,flag=0),
\n,sep=)
^
replace cat with return
}
}
}
I like to save what appears on the screen when I run using
generate.index(10) as a character vector
I used
temp - generate.index(10)
but it didn't work.
Could you provide some advice on this issue?
Thanks in advance
TM
__
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Re: [R] saving a character vector
Sorry. Forget my last post. I seem to be brain dead. Going to bed now
(its late in Germany). Sorry again..
Am Sonntag, den 05.02.2006, 00:56 +0100 schrieb Dominik Heier:
Am Samstag, den 04.02.2006, 17:46 -0600 schrieb Taka Matzmoto:
Hi R users
I wrote a function that generates some character strings.
generate.index-function(n.item){
for (i in 1:n.item)
{
for (j in ((i+1):n.item))
{
cat(i,formatC(i,digits=2,flag=0),.,formatC(j,digits=2,flag=0),\n,sep=)
^
replace cat with return
^
WRONG!! Append it to an array or list and return it at the end of the
function (wich R does by its self)
}
}
}
I like to save what appears on the screen when I run using
generate.index(10) as a character vector
I used
temp - generate.index(10)
but it didn't work.
Could you provide some advice on this issue?
Thanks in advance
TM
__
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Re: [R] saving a character vector
In order to use something like
temp-generate.index(10)
your function should return something.
See ?return for more information, especially this
If the end of a function is reached without calling 'return', the
value of the last evaluated expression is returned.
The following code might be what you want. (P.S Simple replacing cat
with return will not work because return requires expression as argument)
HTH
generate.index-function(n.item){
res-
for (i in 1:n.item)
{
for (j in ((i+1):n.item))
{
res-paste(res,i,formatC(i,digits=2,flag=0),.,formatC(j,digits=2,flag=0),\n,sep=)
}
}
return(res)
}
Dominik Heier wrote:
Am Samstag, den 04.02.2006, 17:46 -0600 schrieb Taka Matzmoto:
Hi R users
I wrote a function that generates some character strings.
generate.index-function(n.item){
for (i in 1:n.item)
{
for (j in ((i+1):n.item))
{
cat(i,formatC(i,digits=2,flag=0),.,formatC(j,digits=2,flag=0),\n,sep=)
^
replace cat with return
}
}
}
I like to save what appears on the screen when I run using
generate.index(10) as a character vector
I used
temp - generate.index(10)
but it didn't work.
Could you provide some advice on this issue?
Thanks in advance
TM
__
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--
Ferdinand Alimadhi
Programmer / Analyst
Harvard University
The Institute for Quantitative Social Science
(617) 496-0187
[EMAIL PROTECTED]
www.iq.harvard.edu
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Re: [R] saving a character vector
Is this what you want? It returns a character vector with the values:
generate.index-function(n.item){
+ .return - character() # initialize vector
+ for (i in 1:n.item)
+{
+for (j in ((i+1):n.item))
+{
+ # concatenate the results
+ .return - c(.return,
paste(i,formatC(i,digits=2,flag=0),.,formatC(j,digits=2,flag=0),sep=))
+
+}
+
+}
+.return
+ }
generate.index(10)
[1] i001.002 i001.003 i001.004 i001.005 i001.006 i001.007
[7] i001.008 i001.009 i001.010 i002.003 i002.004 i002.005
[13] i002.006 i002.007 i002.008 i002.009 i002.010 i003.004
[19] i003.005 i003.006 i003.007 i003.008 i003.009 i003.010
[25] i004.005 i004.006 i004.007 i004.008 i004.009 i004.010
[31] i005.006 i005.007 i005.008 i005.009 i005.010 i006.007
[37] i006.008 i006.009 i006.010 i007.008 i007.009 i007.010
[43] i008.009 i008.010 i009.010 i010.011 i010.010
On 2/4/06, Taka Matzmoto [EMAIL PROTECTED] wrote:
Hi R users
I wrote a function that generates some character strings.
generate.index-function(n.item){
for (i in 1:n.item)
{
for (j in ((i+1):n.item))
{
cat(i,formatC(i,digits=2,flag=0),.,formatC(j,digits=2,flag=0),\n,sep=)
}
}
}
I like to save what appears on the screen when I run using
generate.index(10) as a character vector
I used
temp - generate.index(10)
but it didn't work.
Could you provide some advice on this issue?
Thanks in advance
TM
__
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PLEASE do read the posting guide!
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--
Jim Holtman
Cincinnati, OH
+1 513 247 0281
What the problem you are trying to solve?
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[R] how to extract predicted values from a quantreg fit?
Hi, I have used package quantreg to estimate a non-linear fit to the lowest part of my data points. It works great, by the way. But I'd like to extract the predicted values. The help for predict.qss1 indicates this: predict.qss1(object, newdata, ...) and states that newdata is a data frame describing the observations at which prediction is to be made. I used the same technique I used to extract predicted values of GAM fits with mgcv package: if I fit a GAM using x as the x variable on which I smooth, I then create such a dataframe like this MyX - data.frame(x=seq(-1,60)) This works fine with GAM (mgcv) but not with quantreg: y - rnorm(500, 10, 5) x - rep(seq(1,50,1), 10) My.data - data.frame(x, y) My.x - data.frame(x=seq(5,45)) fit - rqss(y ~ qss(x, lambda=5), tau=0.05) pred - predict.qss1(fit, My.x) Could someone please help me creating a dataframe newdata that would satisfy predict.qss1? Thanks in advance, Denis Chabot __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] Application of R with Multinomial Probit Model
Dear All, I still cannot solve the error (see attached printed pdf file). Can somebody give me some advice? I have also attached my data file in Excel and text formats for your reference. I have already assigned the y1,y2,x1,x12,z1,z2.z14 as V1V23 but still can't work. Please try out and advise. Thanks. Andy result.pdf Description: Adobe PDF document __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] generating strings in a tricky order
Hi R users I like to generate some strings (a character vector) in a special way like If i have 5 variables 002.001, 003.001, 003.002, 004.001, 004.002, 004.003, 005.001, 005.002, 005.003, 005.004 so the created string vector's elements are 002.001, 003.001, 003.002,004.001, 004.002, 004.003,005.001, 005.002, 005.003, 005.004 I tried to come up with for loop with two indexes (i and j) but I kept failing to generate that kind of order of strings. The order of the element in the character vector is very improtant. Any advice or help would be appreciated Thanks in advance TM, __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] generating strings in a tricky order
Is this what you want?
n - 5
result - character()
for (i in 2:n){
+ for (j in 1:(i - 1)){
+ result - c(result, sprintf(%03d:%03d, i, j))
+ }
+ }
result
[1] 002:001 003:001 003:002 004:001 004:002 004:003 005:001
[8] 005:002 005:003 005:004
On 2/4/06, Taka Matzmoto [EMAIL PROTECTED] wrote:
Hi R users
I like to generate some strings (a character vector) in a special way like
If i have 5 variables
002.001,
003.001, 003.002,
004.001, 004.002, 004.003,
005.001, 005.002, 005.003, 005.004
so the created string vector's elements are
002.001, 003.001, 003.002,004.001, 004.002, 004.003,005.001,
005.002, 005.003, 005.004
I tried to come up with for loop with two indexes (i and j) but I kept
failing to generate that kind of order of strings. The order of the
element
in the character vector is very improtant.
Any advice or help would be appreciated
Thanks in advance
TM,
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--
Jim Holtman
Cincinnati, OH
+1 513 247 0281
What the problem you are trying to solve?
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Re: [R] generating strings in a tricky order
Try this: x - outer(1:5, 1:5, sprintf, fmt = %03d.%03d) sort(x[lower.tri(x)]) On 2/4/06, Taka Matzmoto [EMAIL PROTECTED] wrote: Hi R users I like to generate some strings (a character vector) in a special way like If i have 5 variables 002.001, 003.001, 003.002, 004.001, 004.002, 004.003, 005.001, 005.002, 005.003, 005.004 so the created string vector's elements are 002.001, 003.001, 003.002,004.001, 004.002, 004.003,005.001, 005.002, 005.003, 005.004 I tried to come up with for loop with two indexes (i and j) but I kept failing to generate that kind of order of strings. The order of the element in the character vector is very improtant. Any advice or help would be appreciated Thanks in advance TM, __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
Re: [R] How to generate pitch strings
If I calculate a transition probability matrix, first order markov 12x12
or second order 144x144 from musical pitch classes (0-11), is it possible
to generate pitch class strings similar as those original strings using
those probability matrix with R? If, how?
Atte Tenkanen, Turku, Finland
I found this kind of solution:
j=1; a1=c();
Generated_Melody=c(1); #first note as a seed
a1=sample(1:12, size=1, prob=PT_matrix[j,]) # a seed for the loop following
for (i in 1:100){ # length of the generated melody will be 100
Generated_Melody=c(Generated_Melody,a1)
a1=sample(1:12, size=1, prob=PT_matrix[a1,])
}
# Generated_Melody=Generated_Melody-1; # to picht classes
# Generated_Melody=Generated_Melody+59; # or to midi pitches
Atte Tenkanen
PS. Here is my page considering the course in which we use R for music
analysis...
http://musiikintutkimus.blogspot.com/
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[R] reading in a tricky computer program output
Hi R user
I need to read in some values from a computer program output.
I can't change the output format because the developer of the program
doesn't allow to change the format of output.
There are two formats.
First one looks like this
if I have 10 variables,
--
[ 1] [2] [3] [4][5]
[ 1] 0.000
[ 2] 0.001 0.000
[ 3] -0.002 0.019 0.000
[ 4] 0.012-0.004-0.020 0.000
[ 5] -0.015 0.003 0.011 0.008 0.000
[ 6] 0.005-0.008-0.005 0.002 0.005
[ 7] 0.008-0.007 0.013 0.003 0.007
[ 8] -0.014-0.011-0.010-0.025 0.002
[ 9] 0.006 0.003-0.010 0.002-0.020
[10] 0.006 0.010-0.006 0.005 0.008
[ 6] 0.000
[ 7] -0.037 0.000
[ 8] 0.010 0.027 0.000
[ 9] 0.032-0.004 0.008 0.000
[10] -0.008-0.011 0.015-0.020 0.000
NOTE: I put [number] to show that this output is similar to a lower diagonal
matrix including diagonal. In an ouput there is no [number]
The second format looks like this
--
[1] [2] [3] [4] [5]
[ 2] -0.002
[ 3] 0.003-0.053
[ 4] -0.026 0.010 0.045
[ 5] 0.023-0.008-0.025-0.016
[ 6] -0.012 0.023 0.013-0.005-0.011
[ 7] -0.031 0.031-0.054-0.013-0.027
[ 8] 0.040 0.042 0.031 0.075-0.007
[ 9] -0.012-0.009 0.023-0.005 0.037
[10] -0.013-0.027 0.014-0.013-0.020
[ 7] 0.127
[ 8] -0.035-0.166
[ 9] -0.083 0.015-0.027
[10] 0.021 0.047-0.052 0.048
-
NOTE: I put [number] to show that this output is similar to a lower diagonal
matrix without diagonal. In an ouput there is no [number]
The problem of this format is the fixed column length ( 5 columns)
To make matter worse, the number of variables keep changing (10, 20, 30, 40,
50, 60,70,80,90, and 100) so I need to take into the number of variables
when I write a R function to read in these numbers.
If the number of variables is 80, the output is very long.
I only came up with this tedious one.
First I read in the output using scan() and then make it a numeric vector
I created 10 character vectors. Creating a 100 variable character vector is
the most boring things
I have ever done.
one of the character vectors that matchs with the first 10 variable output
is
first.10-c(
i.001.001,
i.002.001,i.002.002,
i.003.001,i.003.002,i.003.003,
i.004.001,i.004.002,i.004.003,i.004.004,
i.005.001,i.005.002,i.005.003,i.005.004,i.005.005,
i.006.001,i.006.002,i.006.003,i.006.004,i.006.005,
i.007.001,i.007.002,i.007.003,i.007.004,i.007.005,
i.008.001,i.008.002,i.008.003,i.008.004,i.008.005,
i.009.001,i.009.002,i.009.003,i.009.004,i.009.005,
i.010.001,i.010.002,i.010.003,i.010.004,i.010.005,
i.006.006,
i.007.006,i.007.007,
i.008.006,i.008.007,i.008.008,
i.009.006,i.009.007,i.009.008,i.009.009,
i.010.006,i.010.007,i.010.008,i.010.009,i.010.010
)
one of the character vectors that matchs with the second 10 variable output
is
second.10-c(
i.002.001,
i.003.001,i.003.002,
i.004.001,i.004.002,i.004.003,
i.005.001,i.005.002,i.005.003,i.005.004,
i.006.001,i.006.002,i.006.003,i.006.004,i.006.005,
i.007.001,i.007.002,i.007.003,i.007.004,i.007.005,
i.008.001,i.008.002,i.008.003,i.008.004,i.008.005,
i.009.001,i.009.002,i.009.003,i.009.004,i.009.005,
i.010.001,i.010.002,i.010.003,i.010.004,i.010.005,
i.007.006,
i.008.006,i.008.007,
i.009.006,i.009.007,i.009.008,
i.010.006,i.010.007,i.010.008,i.010.009
)
and then assign the character vector to the numeric vector by
names-first.10
first.10 = numeric.vector
combined.one - cbind(names,first.10)
container - diag(10)
for (i in 1:(10*10))
{
k - as.numeric(substr(combined.one[i,1],7,9))
l - as.numeric(substr(combined.one [i,1],3,5))
val - as.numeric(combined.one [i,2])
container [k,l] - val
}
