Re: [Rd] Is text(..., adj) upside down? (Or am I?)
On Tue, 22 Jul 2008, Patrick Burns wrote:
Basically the only thing in the thread that was clear
to me was Brian's phrasing. So I'd suggest basing
any changes on that.
I'll add some words. There is one other thing which needs explaining,
what 'bottom' means. For a character string it means the baseline of the
text, for an expression the bottom of the text box (plotmath) does not
attempt to compute baselines. This also affects the computation of
vertical centering:
plot(1:5, type=n)
abline(v=2); abline(v=4)
abline(h=1)
text(2,1, fgh, adj=c(0,0), cex=2)
text(4,1, expression(fgh), adj=c(0,0), cex=2)
abline(h=3)
text(2,3, fgh, adj=c(0,0.5), cex=2)
text(4,3, expression(fgh), adj=c(0,0.5), cex=2)
abline(h=5)
text(4,5, expression(fgh), adj=c(0,1), cex=2)
text(2,5, fgh, adj=c(0,1), cex=2)
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)
S Ellison wrote:
Yup; you're all right - it IS consistent (and I'd even checked the x-adj
and it did what I expected!!). It's just that ?text is talking about the
position of the 'anchor' point in the text region rather than the
subsequent location of the centre of the text.
Anyway; if anyone is considering a minor tweak to ?text, would it be
clearer if it said Values of 0, 0.5, and 1 specify text towards right/top,
middle and
left/bottom of x,y, respectively. ?
(or, of course, Values of 0, 0.5, and 1 specify x,y at left/bottom,
middle and right/top of text, respectively.)
Steve Ellison
Lab of the Government Chemist
UK
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Re: [Rd] Clash between 'Cairo' and 'EBImage' packages on Windows
I updated one of by Windows' boxes to GTK 2.12.9, and replaced the libcairo-2.dll in the Cairo binary distribution by that from GTK 2.12.9. At that point Cairo and EBImage worked together, in either order. I think Uwe may need to trigger a rebuild of his Cairo binary to pick up Simon's updated libcairo-2.dll -- the existing binary is not compatible with GTK 2.12.9. On Tue, 22 Jul 2008, Prof Brian Ripley wrote: On Mon, 21 Jul 2008, Simon Urbanek wrote: Brian, thanks for the analysis. On Jul 21, 2008, at 6:29 , Prof Brian Ripley wrote: On Mon, 21 Jul 2008, Sklyar, Oleg (London) wrote: EBImage is dynamically linked against GTK, which includes cairo libraries, so those are installed along with GTK. Cairo seems to be statically linking to libcairo.dll.a. I would assume that if it is That is an import library, so it is actually linked to libcairo-2.dll, which it ships. linked statically it should not get confused with a shared library present elsewhere in the path, but it looks like it does. I have no solution for that because unlike Cairo I cannot not statically link EBImage to GTK as it is not one library that I need, but a bunch of those. On Linux you won't get this problem as it uses the same centrally installed Cairo library. In a way it would be better, if Cairo relied on the gladewin32.sf.net which normally provides GTK (and thus cairo libraries) for Windows and linked dynamically, but probably to simplify user installations the developers wanted to avoid this. It _is_ using dynamic loading, or there would be no conflict. From the names, it looks very like that it is using a DLL from gladewin32. The real issue looks rather like a versioning problem, that the cairo libraries installed as part of GTK and used by EBImage are way too old (cairo_pdf_surface_create was added at cairo 1.2, and cairo is at 1.6.4). So updating to the current GTK distribution may be all that is needed (and Henrik could also try replacing your GTK's libcairo-2.dll by that distributed with Cairo). For compatibility sake I have updated the libcairo binary to 1.6.4 (based on GTK+ build), so if EBImage gets updated all should be well. EBImage relies on a user installation of GTK (AFAICS). Last night I updated my GTK to 2.12.9 and used that's libcairo-2.dll in Cairo. It all seemed to work. There is not much I can do now about this, but I will follow the thread if anybody comes up with an idea to change the code if possible The Cairo package (which ships DLLs) could rename them, as R itself does where it builds its own versions. Or it could link statically (if that works, which it does not for e.g. package XML). I'd rather not maintain my own build of libcairo for Windows since I don't use it. I may consider renaming the DLL, but given that I'm not building it from sources I'm not sure whether there is a trivial way to do that. If you are not building it yourself, then the only way is to use an editor on the DLL to change the embedded name. I wouldn't suggest you do that (I had thought you were building it yourself). Best, Simon I don't really understand why this was posted to R-devel: it is not an R issue. Dr Oleg Sklyar Technology Group Man Investments Ltd +44 (0)20 7144 3803 [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Henrik Bengtsson Sent: 19 July 2008 19:26 To: R-devel Subject: [Rd] Clash between 'Cairo' and 'EBImage' packages on Windows Hi, on Windows XP Pro with R version 2.7.1 Patched (2008-06-27 r46012) the 'Cairo' and the 'EBImage' packages does not play well together. Loading EBImage before Cairo cause the following to happen: # Rterm --vanilla library(EBImage); library(Cairo) Error in inDL(x, as.logical(local), as.logical(now), ...) : unable to load shared library 'C:/PROGRA~1/R/R-2.7.1pat/library/Cairo/libs/Cai ro.dll': LoadLibrary failure: The specified procedure could not be found. Error : .onLoad failed in 'loadNamespace' for 'Cairo' Error: package/namespace load failed for 'Cairo' with a dialog titled 'Rterm.exe - Entry Point Not Found' saying 'The procedure entry point cairo_pdf_surface_create could not be located in the dynamic link library libcairo-2.dll'. Loading the packages in the reverse order works, but the Rterm seems unstable, e.g. calling q() immediately after will exit the R session without questions: # Rterm --vanilla library(Cairo) library(EBImage) q() [Immediately back to the command line]. I cannot reproduce the problem on R v2.7.1 on Ubuntu Hardy. sessionInfo() R version 2.7.1 Patched (2008-06-27 r46012) i386-pc-mingw32 locale: LC_COLLATE=English_United States.1252;LC_CTYPE=English_United States.1252;LC_MON ETARY=English_United States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] EBImage_2.4.0 Cairo_1.4-2 Cheers
Re: [Rd] Clash between 'Cairo' and 'EBImage' packages on Windows
On Jul 23, 2008, at 6:21 , Prof Brian Ripley wrote: I updated one of by Windows' boxes to GTK 2.12.9, and replaced the libcairo-2.dll in the Cairo binary distribution by that from GTK 2.12.9. At that point Cairo and EBImage worked together, in either order. I think Uwe may need to trigger a rebuild of his Cairo binary to pick up Simon's updated libcairo-2.dll -- the existing binary is not compatible with GTK 2.12.9. I have released a new version of Cario on Monday just to trigger this, so once CRAN is updated it should happen automatically. Thanks, Simon On Tue, 22 Jul 2008, Prof Brian Ripley wrote: On Mon, 21 Jul 2008, Simon Urbanek wrote: Brian, thanks for the analysis. On Jul 21, 2008, at 6:29 , Prof Brian Ripley wrote: On Mon, 21 Jul 2008, Sklyar, Oleg (London) wrote: EBImage is dynamically linked against GTK, which includes cairo libraries, so those are installed along with GTK. Cairo seems to be statically linking to libcairo.dll.a. I would assume that if it is That is an import library, so it is actually linked to libcairo-2.dll, which it ships. linked statically it should not get confused with a shared library present elsewhere in the path, but it looks like it does. I have no solution for that because unlike Cairo I cannot not statically link EBImage to GTK as it is not one library that I need, but a bunch of those. On Linux you won't get this problem as it uses the same centrally installed Cairo library. In a way it would be better, if Cairo relied on the gladewin32.sf.net which normally provides GTK (and thus cairo libraries) for Windows and linked dynamically, but probably to simplify user installations the developers wanted to avoid this. It _is_ using dynamic loading, or there would be no conflict. From the names, it looks very like that it is using a DLL from gladewin32. The real issue looks rather like a versioning problem, that the cairo libraries installed as part of GTK and used by EBImage are way too old (cairo_pdf_surface_create was added at cairo 1.2, and cairo is at 1.6.4). So updating to the current GTK distribution may be all that is needed (and Henrik could also try replacing your GTK's libcairo-2.dll by that distributed with Cairo). For compatibility sake I have updated the libcairo binary to 1.6.4 (based on GTK+ build), so if EBImage gets updated all should be well. EBImage relies on a user installation of GTK (AFAICS). Last night I updated my GTK to 2.12.9 and used that's libcairo-2.dll in Cairo. It all seemed to work. There is not much I can do now about this, but I will follow the thread if anybody comes up with an idea to change the code if possible The Cairo package (which ships DLLs) could rename them, as R itself does where it builds its own versions. Or it could link statically (if that works, which it does not for e.g. package XML). I'd rather not maintain my own build of libcairo for Windows since I don't use it. I may consider renaming the DLL, but given that I'm not building it from sources I'm not sure whether there is a trivial way to do that. If you are not building it yourself, then the only way is to use an editor on the DLL to change the embedded name. I wouldn't suggest you do that (I had thought you were building it yourself). Best, Simon I don't really understand why this was posted to R-devel: it is not an R issue. Dr Oleg Sklyar Technology Group Man Investments Ltd +44 (0)20 7144 3803 [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Henrik Bengtsson Sent: 19 July 2008 19:26 To: R-devel Subject: [Rd] Clash between 'Cairo' and 'EBImage' packages on Windows Hi, on Windows XP Pro with R version 2.7.1 Patched (2008-06-27 r46012) the 'Cairo' and the 'EBImage' packages does not play well together. Loading EBImage before Cairo cause the following to happen: # Rterm --vanilla library(EBImage); library(Cairo) Error in inDL(x, as.logical(local), as.logical(now), ...) : unable to load shared library 'C:/PROGRA~1/R/R-2.7.1pat/library/Cairo/libs/Cai ro.dll': LoadLibrary failure: The specified procedure could not be found. Error : .onLoad failed in 'loadNamespace' for 'Cairo' Error: package/namespace load failed for 'Cairo' with a dialog titled 'Rterm.exe - Entry Point Not Found' saying 'The procedure entry point cairo_pdf_surface_create could not be located in the dynamic link library libcairo-2.dll'. Loading the packages in the reverse order works, but the Rterm seems unstable, e.g. calling q() immediately after will exit the R session without questions: # Rterm --vanilla library(Cairo) library(EBImage) q() [Immediately back to the command line]. I cannot reproduce the problem on R v2.7.1 on Ubuntu Hardy. sessionInfo() R version 2.7.1 Patched (2008-06-27 r46012) i386-pc-mingw32 locale: LC_COLLATE=English_United States.1252;LC_CTYPE=English_United States.1252;LC_MON ETARY=English_United
Re: [Rd] Clash between 'Cairo' and 'EBImage' packages on Windows
Simon Urbanek wrote: On Jul 23, 2008, at 6:21 , Prof Brian Ripley wrote: I updated one of by Windows' boxes to GTK 2.12.9, and replaced the libcairo-2.dll in the Cairo binary distribution by that from GTK 2.12.9. At that point Cairo and EBImage worked together, in either order. I think Uwe may need to trigger a rebuild of his Cairo binary to pick up Simon's updated libcairo-2.dll -- the existing binary is not compatible with GTK 2.12.9. I have released a new version of Cario on Monday just to trigger this, so once CRAN is updated it should happen automatically. Sorry, I'm currently a bit short of time: - Should I install GTK 2.12.9 or does it work with older versions? - So do I understand alright that I do not need to trigger anything yet? Best, Uwe Thanks, Simon On Tue, 22 Jul 2008, Prof Brian Ripley wrote: On Mon, 21 Jul 2008, Simon Urbanek wrote: Brian, thanks for the analysis. On Jul 21, 2008, at 6:29 , Prof Brian Ripley wrote: On Mon, 21 Jul 2008, Sklyar, Oleg (London) wrote: EBImage is dynamically linked against GTK, which includes cairo libraries, so those are installed along with GTK. Cairo seems to be statically linking to libcairo.dll.a. I would assume that if it is That is an import library, so it is actually linked to libcairo-2.dll, which it ships. linked statically it should not get confused with a shared library present elsewhere in the path, but it looks like it does. I have no solution for that because unlike Cairo I cannot not statically link EBImage to GTK as it is not one library that I need, but a bunch of those. On Linux you won't get this problem as it uses the same centrally installed Cairo library. In a way it would be better, if Cairo relied on the gladewin32.sf.net which normally provides GTK (and thus cairo libraries) for Windows and linked dynamically, but probably to simplify user installations the developers wanted to avoid this. It _is_ using dynamic loading, or there would be no conflict. From the names, it looks very like that it is using a DLL from gladewin32. The real issue looks rather like a versioning problem, that the cairo libraries installed as part of GTK and used by EBImage are way too old (cairo_pdf_surface_create was added at cairo 1.2, and cairo is at 1.6.4). So updating to the current GTK distribution may be all that is needed (and Henrik could also try replacing your GTK's libcairo-2.dll by that distributed with Cairo). For compatibility sake I have updated the libcairo binary to 1.6.4 (based on GTK+ build), so if EBImage gets updated all should be well. EBImage relies on a user installation of GTK (AFAICS). Last night I updated my GTK to 2.12.9 and used that's libcairo-2.dll in Cairo. It all seemed to work. There is not much I can do now about this, but I will follow the thread if anybody comes up with an idea to change the code if possible The Cairo package (which ships DLLs) could rename them, as R itself does where it builds its own versions. Or it could link statically (if that works, which it does not for e.g. package XML). I'd rather not maintain my own build of libcairo for Windows since I don't use it. I may consider renaming the DLL, but given that I'm not building it from sources I'm not sure whether there is a trivial way to do that. If you are not building it yourself, then the only way is to use an editor on the DLL to change the embedded name. I wouldn't suggest you do that (I had thought you were building it yourself). Best, Simon I don't really understand why this was posted to R-devel: it is not an R issue. Dr Oleg Sklyar Technology Group Man Investments Ltd +44 (0)20 7144 3803 [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Henrik Bengtsson Sent: 19 July 2008 19:26 To: R-devel Subject: [Rd] Clash between 'Cairo' and 'EBImage' packages on Windows Hi, on Windows XP Pro with R version 2.7.1 Patched (2008-06-27 r46012) the 'Cairo' and the 'EBImage' packages does not play well together. Loading EBImage before Cairo cause the following to happen: # Rterm --vanilla library(EBImage); library(Cairo) Error in inDL(x, as.logical(local), as.logical(now), ...) : unable to load shared library 'C:/PROGRA~1/R/R-2.7.1pat/library/Cairo/libs/Cai ro.dll': LoadLibrary failure: The specified procedure could not be found. Error : .onLoad failed in 'loadNamespace' for 'Cairo' Error: package/namespace load failed for 'Cairo' with a dialog titled 'Rterm.exe - Entry Point Not Found' saying 'The procedure entry point cairo_pdf_surface_create could not be located in the dynamic link library libcairo-2.dll'. Loading the packages in the reverse order works, but the Rterm seems unstable, e.g. calling q() immediately after will exit the R session without questions: # Rterm --vanilla library(Cairo) library(EBImage) q() [Immediately back to the command line]. I cannot reproduce the problem on R v2.7.1 on Ubuntu Hardy. sessionInfo() R
Re: [Rd] Clash between 'Cairo' and 'EBImage' packages on Windows
On Jul 23, 2008, at 11:47 , Uwe Ligges wrote: Simon Urbanek wrote: On Jul 23, 2008, at 6:21 , Prof Brian Ripley wrote: I updated one of by Windows' boxes to GTK 2.12.9, and replaced the libcairo-2.dll in the Cairo binary distribution by that from GTK 2.12.9. At that point Cairo and EBImage worked together, in either order. I think Uwe may need to trigger a rebuild of his Cairo binary to pick up Simon's updated libcairo-2.dll -- the existing binary is not compatible with GTK 2.12.9. I have released a new version of Cario on Monday just to trigger this, so once CRAN is updated it should happen automatically. Sorry, I'm currently a bit short of time: - Should I install GTK 2.12.9 or does it work with older versions? - So do I understand alright that I do not need to trigger anything yet? As far as I am concerned nothing needs to be done - Cairo package pulls its own copy of libcairo-2 (1.6.4 which comes from GTK+) when built and I have submitted a new version of Cairo to CRAN few days ago so hopefully it will appear there sometime. I don't know what EBImage needs, though... Cheers, Simon Thanks, Simon On Tue, 22 Jul 2008, Prof Brian Ripley wrote: On Mon, 21 Jul 2008, Simon Urbanek wrote: Brian, thanks for the analysis. On Jul 21, 2008, at 6:29 , Prof Brian Ripley wrote: On Mon, 21 Jul 2008, Sklyar, Oleg (London) wrote: EBImage is dynamically linked against GTK, which includes cairo libraries, so those are installed along with GTK. Cairo seems to be statically linking to libcairo.dll.a. I would assume that if it is That is an import library, so it is actually linked to libcairo-2.dll, which it ships. linked statically it should not get confused with a shared library present elsewhere in the path, but it looks like it does. I have no solution for that because unlike Cairo I cannot not statically link EBImage to GTK as it is not one library that I need, but a bunch of those. On Linux you won't get this problem as it uses the same centrally installed Cairo library. In a way it would be better, if Cairo relied on the gladewin32.sf.net which normally provides GTK (and thus cairo libraries) for Windows and linked dynamically, but probably to simplify user installations the developers wanted to avoid this. It _is_ using dynamic loading, or there would be no conflict. From the names, it looks very like that it is using a DLL from gladewin32. The real issue looks rather like a versioning problem, that the cairo libraries installed as part of GTK and used by EBImage are way too old (cairo_pdf_surface_create was added at cairo 1.2, and cairo is at 1.6.4). So updating to the current GTK distribution may be all that is needed (and Henrik could also try replacing your GTK's libcairo-2.dll by that distributed with Cairo). For compatibility sake I have updated the libcairo binary to 1.6.4 (based on GTK+ build), so if EBImage gets updated all should be well. EBImage relies on a user installation of GTK (AFAICS). Last night I updated my GTK to 2.12.9 and used that's libcairo-2.dll in Cairo. It all seemed to work. There is not much I can do now about this, but I will follow the thread if anybody comes up with an idea to change the code if possible The Cairo package (which ships DLLs) could rename them, as R itself does where it builds its own versions. Or it could link statically (if that works, which it does not for e.g. package XML). I'd rather not maintain my own build of libcairo for Windows since I don't use it. I may consider renaming the DLL, but given that I'm not building it from sources I'm not sure whether there is a trivial way to do that. If you are not building it yourself, then the only way is to use an editor on the DLL to change the embedded name. I wouldn't suggest you do that (I had thought you were building it yourself). Best, Simon I don't really understand why this was posted to R-devel: it is not an R issue. Dr Oleg Sklyar Technology Group Man Investments Ltd +44 (0)20 7144 3803 [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Henrik Bengtsson Sent: 19 July 2008 19:26 To: R-devel Subject: [Rd] Clash between 'Cairo' and 'EBImage' packages on Windows Hi, on Windows XP Pro with R version 2.7.1 Patched (2008-06-27 r46012) the 'Cairo' and the 'EBImage' packages does not play well together. Loading EBImage before Cairo cause the following to happen: # Rterm --vanilla library(EBImage); library(Cairo) Error in inDL(x, as.logical(local), as.logical(now), ...) : unable to load shared library 'C:/PROGRA~1/R/R-2.7.1pat/library/Cairo/libs/Cai ro.dll': LoadLibrary failure: The specified procedure could not be found. Error : .onLoad failed in 'loadNamespace' for 'Cairo' Error: package/namespace load failed for 'Cairo' with a dialog titled 'Rterm.exe - Entry Point Not Found' saying 'The procedure entry point
Re: [Rd] [R] shQuote and cat
I feel like it now belongs to r-devel more than to r-help. My output was garbled because I sent the original message as HTML, sorry about that. Your output, \\\a\\\, is what I get too. That is cat(shQuote(shQuote(shQuote(a))), '\n') \\\a\\\ , which I think should be a. Actually, the R's output, \\\a\\\, is not even a valid string literal, that is x - \\\a\\\ fails. Now, by cat() being the inverse of shQuote() I mean printing the same literal as it goes into shQuote, quotes included: cat(shQuote(a), '\n') a whereas cat(a, '\n') a ## no quotes If cat() is not the inverse of shQuote() in the above sense, what is? Thanks, Vadim From: Duncan Murdoch [EMAIL PROTECTED] Sent: Wednesday, July 23, 2008 1:10 PM To: Vadim Organovich Cc: [EMAIL PROTECTED] Subject: Re: [R] shQuote and cat On 7/23/2008 12:20 PM, Vadim Organovich wrote: Dear R-users, It is my understanding that cat(shQuote(a.string)) should print the origintal a.string. Is this right? No, cat(a.string) should print the original a.string. shQuote(a.string) adds quotes so that a.string can be used in the shell. I am not sure cat() correctly prints strings which are generated by triple-shQuote(): shQuote(shQuote(a)) [1] a cat(shQuote(shQuote(shQuote(a))), '\n') \\\a\\\file://\\a\\\ That's a very strange result. I tried the obsolete version of R that you're using, and I didn't see it. I get this: cat(shQuote(shQuote(shQuote(a))), '\n') \\\a\\\ Duncan Murdoch As you can see the latter string has fewer quoting '\' than the former. cat() of double shQuote works as expected: shQuote(a) [1] \a\ cat(shQuote(shQuote(a)), '\n') \a\ version _ platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 2 minor 6.1 year 2007 month 11 day26 svn rev43537 language R version.string R version 2.6.1 (2007-11-26) Am I missing something? Thanks, Vadim Note: This email is for the confidential use of the named addressee(s) only and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you are hereby notified that any review, dissemination or copying of this email is strictly prohibited, and to please notify the sender immediately and destroy this email and any attachments. Email transmission cannot be guaranteed to be secure or error-free. Jump Trading, therefore, does not make any guarantees as to the completeness or accuracy of this email or any attachments. This email is for informational purposes only and does not constitute a recommendation, offer, request or solicitation of any kind to buy, sell, subscribe, redeem or perform any type of transaction of a financial product. [[alternative HTML version deleted]] __ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Note: This email is for the confidential use of the named addressee(s) only and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you are hereby notified that any review, dissemination or copying of this email is strictly prohibited, and to please notify the sender immediately and destroy this email and any attachments. Email transmission cannot be guaranteed to be secure or error-free. Jump Trading, therefore, does not make any guarantees as to the completeness or accuracy of this email or any attachments. This email is for informational purposes only and does not constitute a recommendation, offer, request or solicitation of any kind to buy, sell, subscribe, redeem or perform any type of transaction of a financial product. __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
Re: [Rd] [R] shQuote and cat
On 7/23/2008 2:53 PM, Vadim Organovich wrote: I feel like it now belongs to r-devel more than to r-help. My output was garbled because I sent the original message as HTML, sorry about that. Your output, \\\a\\\, is what I get too. That is cat(shQuote(shQuote(shQuote(a))), '\n') \\\a\\\ , which I think should be a. Actually, the R's output, \\\a\\\, is not even a valid string literal, that is x - \\\a\\\ fails. It's not intended to be a string literal in R, it's intended to be input to the Windows CMD shell. If you want a string literal in R, don't use cat(). cat() shows you the naked contents of the string without any quoting to make it a valid string literal. Now, by cat() being the inverse of shQuote() I mean printing the same literal as it goes into shQuote, quotes included: cat(shQuote(a), '\n') a whereas cat(a, '\n') a ## no quotes If cat() is not the inverse of shQuote() in the above sense, what is? On Unix-like systems I think asking the shell to echo the output, i.e. system(paste(echo, shQuote(input)), intern=TRUE) is intended to reproduce the input. However, the Windows CMD shell is different. I don't know how to strip quotes off a string in it, e.g. I see C:\WINDOWS\system32 echo a a Nevertheless, the quotes *are* necessary when passing filenames to commands, and they'll typically be stripped off when doing that, e.g. echo hi a will create a file named a, not named a, and echo hi a b will create a file with a space in the name. Duncan Murdoch __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
Re: [Rd] [R] shQuote and cat
It is precizely a shell command that I am trying to generate. To be specific
let's try to have R 'output' the following shell command: 'echo \a\'. This
is is a valid command, at least in bash:
bash-3.2$ echo \a\
a
Now in R:
x - 'echo \a\'
cat(x, '\n')
echo a
cat(shQuote(x), '\n')
echo \\a\\
Whichever way you do it it is not right. Again I think cat('echo \a\')
should be printing *echo \a\* (asterics are not a part of the output)
From: Duncan Murdoch [EMAIL PROTECTED]
Sent: Wednesday, July 23, 2008 2:38 PM
To: Vadim Organovich
Cc: r-devel@r-project.org
Subject: Re: [Rd] [R] shQuote and cat
On 7/23/2008 2:53 PM, Vadim Organovich wrote:
I feel like it now belongs to r-devel more than to r-help.
My output was garbled because I sent the original message as HTML, sorry
about that.
Your output, \\\a\\\, is what I get too. That is
cat(shQuote(shQuote(shQuote(a))), '\n')
\\\a\\\
, which I think should be a.
Actually, the R's output, \\\a\\\, is not even a valid string literal,
that is
x - \\\a\\\
fails.
It's not intended to be a string literal in R, it's intended to be input
to the Windows CMD shell. If you want a string literal in R, don't use
cat(). cat() shows you the naked contents of the string without any
quoting to make it a valid string literal.
Now, by cat() being the inverse of shQuote() I mean printing the same literal
as it goes into shQuote, quotes included:
cat(shQuote(a), '\n')
a
whereas
cat(a, '\n')
a ## no quotes
If cat() is not the inverse of shQuote() in the above sense, what is?
On Unix-like systems I think asking the shell to echo the output, i.e.
system(paste(echo, shQuote(input)), intern=TRUE)
is intended to reproduce the input. However, the Windows CMD shell is
different. I don't know how to strip quotes off a string in it, e.g. I see
C:\WINDOWS\system32 echo a
a
Nevertheless, the quotes *are* necessary when passing filenames to
commands, and they'll typically be stripped off when doing that, e.g.
echo hi a
will create a file named a, not named a, and
echo hi a b
will create a file with a space in the name.
Duncan Murdoch
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Re: [Rd] [R] shQuote and cat
Vadim Organovich wrote:
It is precizely a shell command that I am trying to generate. To be specific let's try to have R
'output' the following shell command: 'echo \a\'. This is is a valid
command, at least in bash:
bash-3.2$ echo \a\
a
Now in R:
x - 'echo \a\'
cat(x, '\n')
echo a
cat(shQuote(x), '\n')
echo \\a\\
Whichever way you do it it is not right. Again I think cat('echo \a\') should be printing *echo
\a\* (asterics are not a part of the output)
But you were running on Windows, so the default shell is CMD, not bash.
shQuote doesn't support bash specifically, but I imagine it uses the
same quoting rules as sh, so you should use shQuote('a', type=sh).
On my machine that gives 'a', and echo 'a' prints a as you wanted.
I don't think you want to quote the echo in the command, only the
string that you want it to print, i.e. for the full command you should use
cat(paste(echo, shQuote('a', type=sh)))
echo 'a'
Duncan Murdoch
From: Duncan Murdoch [EMAIL PROTECTED]
Sent: Wednesday, July 23, 2008 2:38 PM
To: Vadim Organovich
Cc: r-devel@r-project.org
Subject: Re: [Rd] [R] shQuote and cat
On 7/23/2008 2:53 PM, Vadim Organovich wrote:
I feel like it now belongs to r-devel more than to r-help.
My output was garbled because I sent the original message as HTML, sorry about
that.
Your output, \\\a\\\, is what I get too. That is
cat(shQuote(shQuote(shQuote(a))), '\n')
\\\a\\\
, which I think should be a.
Actually, the R's output, \\\a\\\, is not even a valid string literal,
that is
x - \\\a\\\
fails.
It's not intended to be a string literal in R, it's intended to be input
to the Windows CMD shell. If you want a string literal in R, don't use
cat(). cat() shows you the naked contents of the string without any
quoting to make it a valid string literal.
Now, by cat() being the inverse of shQuote() I mean printing the same literal
as it goes into shQuote, quotes included:
cat(shQuote(a), '\n')
a
whereas
cat(a, '\n')
a ## no quotes
If cat() is not the inverse of shQuote() in the above sense, what is?
On Unix-like systems I think asking the shell to echo the output, i.e.
system(paste(echo, shQuote(input)), intern=TRUE)
is intended to reproduce the input. However, the Windows CMD shell is
different. I don't know how to strip quotes off a string in it, e.g. I see
C:\WINDOWS\system32 echo a
a
Nevertheless, the quotes *are* necessary when passing filenames to
commands, and they'll typically be stripped off when doing that, e.g.
echo hi a
will create a file named a, not named a, and
echo hi a b
will create a file with a space in the name.
Duncan Murdoch
Note: This email is for the confidential use of the named addressee(s) only and
may contain proprietary, confidential or privileged information. If you are not
the intended recipient, you are hereby notified that any review, dissemination
or copying of this email is strictly prohibited, and to please notify the
sender immediately and destroy this email and any attachments. Email
transmission cannot be guaranteed to be secure or error-free. Jump Trading,
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this email or any attachments. This email is for informational purposes only
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Re: [Rd] [R] shQuote and cat
On Jul 23, 2008, at 4:46 PM, Vadim Organovich wrote:
It is precizely a shell command that I am trying to generate. To be
specific let's try to have R 'output' the following shell command:
'echo \a\'. This is is a valid command, at least in bash:
bash-3.2$ echo \a\
a
Now in R:
x - 'echo \a\'
cat(x, '\n')
echo a
cat(shQuote(x), '\n')
echo \\a\\
Whichever way you do it it is not right.
Well, you input is not right ('\' is parsed in R into '') - you have
to escape the backslash that you want to keep and all is well:
x - 'echo \\a\\'
cat(x, '\n')
echo \a\
cat(shQuote(x), '\n')
'echo \a\'
system(paste(sh -c,shQuote(x,type=sh)))
a
Cheers,
Simon
Again I think cat('echo \a\') should be printing *echo \a\*
(asterics are not a part of the output)
From: Duncan Murdoch [EMAIL PROTECTED]
Sent: Wednesday, July 23, 2008 2:38 PM
To: Vadim Organovich
Cc: r-devel@r-project.org
Subject: Re: [Rd] [R] shQuote and cat
On 7/23/2008 2:53 PM, Vadim Organovich wrote:
I feel like it now belongs to r-devel more than to r-help.
My output was garbled because I sent the original message as HTML,
sorry about that.
Your output, \\\a\\\, is what I get too. That is
cat(shQuote(shQuote(shQuote(a))), '\n')
\\\a\\\
, which I think should be a.
Actually, the R's output, \\\a\\\, is not even a valid string
literal, that is
x - \\\a\\\
fails.
It's not intended to be a string literal in R, it's intended to be
input
to the Windows CMD shell. If you want a string literal in R, don't
use
cat(). cat() shows you the naked contents of the string without any
quoting to make it a valid string literal.
Now, by cat() being the inverse of shQuote() I mean printing the
same literal as it goes into shQuote, quotes included:
cat(shQuote(a), '\n')
a
whereas
cat(a, '\n')
a ## no quotes
If cat() is not the inverse of shQuote() in the above sense, what is?
On Unix-like systems I think asking the shell to echo the output, i.e.
system(paste(echo, shQuote(input)), intern=TRUE)
is intended to reproduce the input. However, the Windows CMD shell is
different. I don't know how to strip quotes off a string in it,
e.g. I see
C:\WINDOWS\system32 echo a
a
Nevertheless, the quotes *are* necessary when passing filenames to
commands, and they'll typically be stripped off when doing that, e.g.
echo hi a
will create a file named a, not named a, and
echo hi a b
will create a file with a space in the name.
Duncan Murdoch
Note: This email is for the confidential use of the named
addressee(s) only and may contain proprietary, confidential or
privileged information. If you are not the intended recipient, you
are hereby notified that any review, dissemination or copying of
this email is strictly prohibited, and to please notify the sender
immediately and destroy this email and any attachments. Email
transmission cannot be guaranteed to be secure or error-free. Jump
Trading, therefore, does not make any guarantees as to the
completeness or accuracy of this email or any attachments. This
email is for informational purposes only and does not constitute a
recommendation, offer, request or solicitation of any kind to buy,
sell, subscribe, redeem or perform any type of transaction of a
financial product.
__
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[Rd] plot.dendrogram xlim/ylim
list(...),
I would like to zoom in to the leaves of large trees in a dendrogram
plot. The playwith package allows zooming by passing xlim and ylim
arguments to the plot call (Hmisc does this too I think). But
currently stats:::plot.dendrogram does not accept xlim or ylim. So I
would like to enable that. In place of the existing code chunk:
xlim - c(x1 - 1/2, x2 + 1/2)
ylim - c(0, yTop)
if (horiz) {
xl - xlim
xlim - rev(ylim)
ylim - xl
tmp - xaxt
xaxt - yaxt
yaxt - tmp
}
plot(0, xlim = xlim, ylim = ylim, ..
I propose something like:
function(..., xlim, ylim)
xlim0 - c(x1 - 1/2, x2 + 1/2)
ylim0 - c(0, yTop)
if (horiz) {
xl - xlim0
xlim0 - rev(ylim0)
ylim - xl
tmp - xaxt
xaxt - yaxt
yaxt - tmp
}
if (missing(xlim)) xlim - xlim0
if (missing(ylim)) ylim - ylim0
plot(0, xlim = xlim, ylim = ylim, ..
Regards,
Felix
--
Felix Andrews / 安福立
PhD candidate
Integrated Catchment Assessment and Management Centre
The Fenner School of Environment and Society
The Australian National University (Building 48A), ACT 0200
Beijing Bag, Locked Bag 40, Kingston ACT 2604
http://www.neurofractal.org/felix/
3358 543D AAC6 22C2 D336 80D9 360B 72DD 3E4C F5D8
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