On 9/6/07, Rolf Turner [EMAIL PROTECTED] wrote:
On 7/09/2007, at 10:17 AM, (Ted Harding) wrote:
On 06-Sep-07 18:42:32, Philip James Smith wrote:
Hi R-ers:
I need to compute the distance between 2 street addresses in
either km or miles. I do not care if the distance is a shortest
Hi,
yes, it is all about numerical accuracy;
x - c(6.402611, 6.402611, 6.420587)
x001 - sapply(1:9, function(type) quantile(x, probs=0.01, type=type))
names(x001) - NULL
print(x001)
## [1] 6.402611 6.402611 6.402611 6.402611 6.402611
## [6] 6.402611 6.402611 6.402611 6.402611
diff(x001)
## [1]
See arrayIndex() in the R.utils package, e.g.
X - array((2*3*4):1, dim=c(2,3,4))
idx - 1:length(X)
ijk - arrayIndex(idx, dim=dim(X))
print(ijk)
[,1] [,2] [,3]
[1,]111
[2,]211
[3,]121
[4,]221
[5,]131
[6,]231
[7,]1
See the EBImage package on Bioconductor. /Henrik
On 6/7/07, Bob Meglen [EMAIL PROTECTED] wrote:
I realize that this question has been asked before (2003);
From: Yi-Xiong Zhou
Date: Sat 22 Nov 2003 - 10:57:35 EST
but I am hoping that the answer has changed. Namely, I would
rather read the
See ?tryCatch.
Example: Function returning NULL if cancelled:
fileChoose - function(...) {
pathname - NULL;
tryCatch({
pathname - file.choose();
}, error = function(ex) {
})
pathname;
}
/Henrik
On 6/6/07, Ben Tupper [EMAIL PROTECTED] wrote:
Hello,
I have a file reading
I use:
foo - function(...) {
args - list(...);
names(args);
}
/Henrik
On 6/1/07, Mike Meredith [EMAIL PROTECTED] wrote:
Is there a tidy way to get the names of objects passed to a function via the
... argument?
rbind/cbind does what I want:
test.func1 - function(...) {
nms -
Hi,
I think the behavior that you outline is due to the fact that you
cut'n'paste the script to the R prompt, is that correct? If so, use
source() instead to run your script, then stop() will do what you
want.
/Henrik
On 5/21/07, Blew, Ted [EMAIL PROTECTED] wrote:
it is desired to abort an R
See ll() in R.oo (that is two L:s), e.g.
ll()
member data.class dimension objectSize
1 author character 1120
2 myfunc function NULL512
3 x matrix c(3,11)248
4 y array c(5,7,1)264
ll() is quite flexible so you can create
Hi,
as already mentioned, do not save MAT files in ASCII format but save
to binary formats, i.e. do *not* use -ascii. Moreover, from
?readMat, you find that:
From Matlab v7, _compressed_ MAT version 5 files are used by
default [3]. These are not supported. Use 'save -V6' in Matlab to
...and so say google [http://www.google.com/search?q=1%250.1]:
1 modulo 0.1 = 0.1,
so end of discussion ;)
In bit of a food coma now, but the following is interesting:
r = a %% b
=
r = (b*a/b) %% (b*b/b)
=
r = b*((a/b) %% 1)
modulo - function(a, b) { b * ((a/b) %% 1) }
intdiv
Hope this helps.
Spencer Graves
Henrik Bengtsson wrote:
Hi,
as already mentioned, do not save MAT files in ASCII format but save
to binary formats, i.e. do *not* use -ascii. Moreover, from
?readMat, you find that:
From Matlab v7, _compressed_ MAT version 5 files are used
Try using png2() in R.utils, which immitates png() but uses bitmap()
and ghostscript to create the PNG file. You need to set 'R_GSCMD' to
tell R where ghostscript is located - you can use
System$findGhostscript() at startup to let R try to locate ghostscript
for you.
/H
On 4/19/07, Mark
Or see png2() in R.utils, which imitates png() but uses bitmap(),
which in turn uses postscript-to-png via ghostscript. BTW, personally
I think PNGs generated via bitmap() look way better than the ones
generated via png().
/Henrik
On 4/17/07, Jeffrey Horner [EMAIL PROTECTED] wrote:
Ulrik
Hi.
On 4/6/07, Yuchen Luo [EMAIL PROTECTED] wrote:
Hi, my friends.
When a data file is large, loading the whole file into the memory all
together is not feasible. A feasible way is to read one row, process it,
store the result, and read the next row.
In Fortran, by default, the 'read'
On 4/5/07, Tobias Verbeke [EMAIL PROTECTED] wrote:
Schmitt, Corinna wrote:
Hallo,
does a package for Matlab exist in R?
To read and write MAT files, there is the R.matlab package:
http://cran.r-project.org/src/contrib/Descriptions/R.matlab.html
This package also enables bidirectional
FYI, to save data as bitmap images, see the EBImage package on Bioconductor.
/H
On 3/15/07, Ranjan Maitra [EMAIL PROTECTED] wrote:
On Wed, 14 Mar 2007 18:45:53 -0700 (PDT) Milton Cezar Ribeiro [EMAIL
PROTECTED] wrote:
Dear Friends,
I saved a matrix - which contans values 0 and 1 -
Hi,
I've get the following on both strider and frodo:
frodo{hb}: hpush -v
Sorry, user hb is not allowed to execute '/usr/local/bin/hpush -v' as
upush on frodo.Berkeley.EDU.
Strange, because it worked when we set it up Thursday.
Thxs
Henrik
__
[that one went to the wrong [EMAIL PROTECTED] sorry about that. /Henrik]
On 3/2/07, Henrik Bengtsson [EMAIL PROTECTED] wrote:
Hi,
I've get the following on both strider and frodo:
frodo{hb}: hpush -v
Sorry, user hb is not allowed to execute '/usr/local/bin/hpush -v' as
upush
Just an idea: Two things that can slow down save()/load() is if you
save() in ASCII format or a compressed binary format. If this is your
case for MYFILE, try to resave in a non-compressed binary format. See
?save for details.
/HB
On 3/1/07, ramzi abboud [EMAIL PROTECTED] wrote:
Is R file IO
Hi,
I'm trying to remove/delete a directory usingR. I've tried the
following with no success:
% Rterm --vanilla
getwd()
[1] C:/Documents and Settings/hb/braju.com.R/aroma.affymetrix/test
dir.create(foo)
file.info(foo)
size isdir mode mtime ctime
file.info(foo)
size isdir mode mtime ctime atime
foo NANA NA NA NA NA
file.exists(foo)
[1] FALSE
/Henrik
On 2/28/07, James W. MacDonald [EMAIL PROTECTED] wrote:
I think you want to add a recursive = TRUE to your call to unlink().
Best,
Jim
Henrik Bengtsson wrote:
Hi,
I'm
Hi,
this is due to the R.utils library. Interestingly, others reported
this yesterday. There are three different ways to get around the
problem right now: 1) Exit R so it does not call .Last() by
quit(runLast=FALSE), 2) load the R.utils package and then exit via
quit() as usual, or 3) remove
For the completion of this thread; the below update was confirmed to
solve the problem. /HB
On 2/27/07, Henrik Bengtsson [EMAIL PROTECTED] wrote:
Hi,
this is due to the R.utils library. Interestingly, others reported
this yesterday. There are three different ways to get around the
problem
if (!name %in% names(attributes(dat))) {
...
}
/Henrik
On 2/26/07, Michael Toews [EMAIL PROTECTED] wrote:
In R 2.5.0 (r40806), one of the change is to allow partial matching of
name in the attr function. However, how can I tell if I have an exact
match or not?
For example, checking to see
On 2/16/07, Jim Regetz [EMAIL PROTECTED] wrote:
Roland Rau wrote:
On 2/16/07, Petr Pikal [EMAIL PROTECTED] wrote:
Hi
slight modification of your function can be probably even quicker:
fff-function(x) sum(2^(which(rev(x))-1))
:-)
Petr
Yes, your function is slightly but
ignore since source(arg) in R takes
care of closing.
}
}
}
for (Object j:err){
System.out.println(j);
}
}
}
Henrik Bengtsson wrote:
To be more precise, put the tryCatch() only around the code causing
the problem
Henrik Bengtsson wrote:
See ?tryCatch. /Henrik
On 2/12/07, Stephen Bond [EMAIL PROTECTED] wrote:
Could smb please help with try-catch encapsulating a function for
downloading. Let's say I have a character vector of symbols and want to
download each one and surround by try and catch
file and stops there while
I want it to go through the list and accumulate the nonexistent
filenames in err.
Thank you
Stephen
Henrik Bengtsson wrote:
Hi,
google R tryCatch example and you'll find:
http://www.maths.lth.se/help/R/ExceptionHandlingInR/
Hope this helps
Henrik
To be more precise, put the tryCatch() only around the code causing
the problem, i.e. around source(). /H
On 2/13/07, Henrik Bengtsson [EMAIL PROTECTED] wrote:
Put the for loop outside the tryCatch(). /H
On 2/13/07, Stephen Bond [EMAIL PROTECTED] wrote:
Henrik,
thank you
See ?tryCatch. /Henrik
On 2/12/07, Stephen Bond [EMAIL PROTECTED] wrote:
Could smb please help with try-catch encapsulating a function for
downloading. Let's say I have a character vector of symbols and want to
download each one and surround by try and catch to be safe
# get.hist.quote() is
Hi.
General idea:
1. Open your file as a connection, i.e. con - file(pathname, open=r)
2. Generate a row to (file offset, row length) map of your text file,
i.e. a numeric vector 'fileOffsets' and 'rowLengths'. Use readBin()
for this. You build this up as you go by reading the file in chunks
Forgot to say, in your script you're reading the rows unordered
meaning you're jumping around in the file and there is no way the
hardware or the file caching system can optimize that. I'm pretty
sure you would see a substantial speedup if you did:
sel - sort(sel);
/H
On 2/2/07, Henrik
The iwpca() in Bioconductor package aroma.light takes a matrix of
column vectors and fits an R-dimensional hyperplane using iterative
re-weighted PCA. From ?iwpca.matrix:
Arguments:
X N-times-K matrix where N is the number of observations and K is the
number of dimensions.
Details:
This
in R.oo?
How I'd like to use it: I have an object which opens a connection thru RODBC
(held as a private member) It would be nice if the connection closes
automatically
(inside the destructor) when an object gets gc()'ed.
Thanks in advance.
Regards,
Ken
BTW, a BIG thanks to Henrik
To create a empty list do:
B - list()
/H
On 1/16/07, Robin Hankin [EMAIL PROTECTED] wrote:
The following gotcha caught me off-guard just now.
I have two matrices, a and b:
a - matrix(1,3,3)
b - matrix(1,1,1)
(note that both a and b are matrices).
I want them in a list:
B -
First, since you only update the 'ddtd' conditioned on 'value', you
should be able to vectorize removing the loop. I let you figure out
how to do that yourself.
Second, you apply the $ operator multiple times in the loop that
will definitely add some overhead. It should be faster to extract
sourceTo() in R.utils will allow you to source() a file into an environment.
/Henrik
On 1/9/07, Gabor Grothendieck [EMAIL PROTECTED] wrote:
Try this:
e - new.env()
e$f - function(x)x
attach(e)
search()
[1] .GlobalEnve package:stats
[4] package:graphics
This is very odd, but maybe 'cd' is not a command on your Windows
Matlab installation. I tried the same code on a Unix installation (I
don't have access to Matlab for Windows but others have been using
R.matlab there successfully). Find out what the command for getting
the current directory in
Hi,
it sounds like you mixing up the words install and load.
Basically, you only have to *install* a package once on your computer,
but have to load it for every R session which you are going to use it
in.
So, in your case install it once, using either
install.packages(corpcor)
or the
Hi.
On 12/30/06, Bhanu Kalyan.K [EMAIL PROTECTED] wrote:
Dear Mr.Bengtsson,
The steps you have suggested are working for single lines of matlab
statements. But, as i mentioned earlier, If i want to see the output of an
entire matlab code (say swissroll.m) then you suggested me to do
res -
On 12/28/06, Bhanu Kalyan.K [EMAIL PROTECTED] wrote:
Respected Sir,
It worked.
open(matlab)
[1] TRUE
Good.
But however, the 'evaluate' function is not responding.
When i give the command as:
res - evaluate(matlab, A=1+2;, B=ones(2,20);)
The R interface is not returning any value
[Forwarding to r-help for completeness. /Henrik]
-- Forwarded message --
From: Henrik Bengtsson [EMAIL PROTECTED]
Date: Dec 28, 2006 9:45 PM
Subject: Re: [R] Query regarding linking R with Matlab
To: [EMAIL PROTECTED]
Hi.
On 12/28/06, Bhanu Kalyan.K [EMAIL PROTECTED] wrote
Hi,
It might be that R can't find Matlab; then you have to specify option
'matlab', see help(Matlab). Try also a different port. Try to add a
line setVerbose(matlab, -2) to get more detailed output what is going
on;
matlab - Matlab(host=localhost, port=9998)
setVerbose(matlab, -2)
if
Hi.
From what you tell me you manage to start Matlab in the background by calling:
Matlab$startServer()
but that R fails to connect to Matlab by:
matlab - Matlab(host=localhost, port=9998)
if (!open(matlab))
throw(Matlab server is not running: waited 30 seconds.)
Sorry for not being
?
Henrik
On 12/20/06, Henrik Bengtsson [EMAIL PROTECTED] wrote:
Hi.
On 12/20/06, Aimin Yan [EMAIL PROTECTED] wrote:
Does anyone know how to solve this question about R.matlab?
I am in windowsXP, my matlab is matlab 7.0.0 19920(R14)
thanks,
Aimin
matlab - Matlab(host=localhost, port
Hi.
On 12/20/06, Aimin Yan [EMAIL PROTECTED] wrote:
Does anyone know how to solve this question about R.matlab?
I am in windowsXP, my matlab is matlab 7.0.0 19920(R14)
thanks,
Aimin
matlab - Matlab(host=localhost, port=9998)
if (!open(matlab)) throw(Matlab server is not running:
Hi.
On 12/20/06, Bhanu Kalyan.K [EMAIL PROTECTED] wrote:
Sir,
I am still new to the R-matlab interfacing. I will explain you the problem
statement more clearly.
The following is a matlab code. (swissroll.m)
=
% SWISS ROLL DATASET
There is no support for 'call by reference' in the S language, and
this is intentionally, but you can use environments to imitate it, cf.
?environment. See also the R.oo package.
/Henrik
On 12/20/06, biter bilen [EMAIL PROTECTED] wrote:
Can anyone help me about pass by reference of arguments
Hi,
what operating system are you on and what version of Matlab do you have?
In general you should be able to get started with R.matlab by first
installing all required packages from CRAN:
install.packages(c(R.oo, R.utils, R.matlab))
Then load the package:
library(R.matlab)
From there just
Hi.
On 12/18/06, Aimin Yan [EMAIL PROTECTED] wrote:
In order to start matlab server in R , I using the following commands
getwd()
setwd(D:\R_matlab)
install.packages(R.oo)
install.packages(R.matlab)
install.packages(R.utils)
library(R.matlab)
Matlab$startServer()
a minimized MATLAB
Please note that help(-) says:
The operators '-' and '-' cause a search to made through the
environment for an existing definition of the variable being
assigned. If such a variable is found (and its binding is not
locked) then its value is redefined, otherwise assignment takes
Here is a simple function that allow you to load the objects stored by
save() into an evironment (to avoid loading them into the global
workspace):
loadToEnv - function(...) {
env - new.env()
load(..., env=env)
env
}
x - 1:10
save(file=foo.xdr, x, letters, R.version)
objects -
Hi,
what you are observing is the fact that there is always a limit in the
precision a floating-point values can be stored. The value you are
trying to read is stored in 4 bytes (floats). For higher precision,
the value could be stored in 8 bytes (doubles). BTW, R works with 8
byte
On 10/11/06, Gabor Grothendieck [EMAIL PROTECTED] wrote:
You can define your own class then define [ to act any way you would like:
[.myobj - function(x, ...) {
y - unclass(x)[...]
Careful, this is not the same as
y - NextMethod([, x, ...)
/Henrik
attributes(y)
tryCatch() is doing exactly what you need. I consider tryCatch() an
updated and more flexible version of try() making the latter history.
/H
On 10/9/06, Gabor Grothendieck [EMAIL PROTECTED] wrote:
See:
http://www.mail-archive.com/r-help@stat.math.ethz.ch/msg09925.html
On 10/9/06, Jonathan
See ll() in the R.oo package. /Henrik
On 9/27/06, Ben Fairbank [EMAIL PROTECTED] wrote:
Does R provide a function analogous to LS() or str() that reports the
storage space, on disk or in memory, required by objects?
Ben Fairbank
__
Example:
lst - list(variable1, variable2, variable3)
for (kk in seq(along=lst)) {
name - names(lst)[kk];
value - lst[[kk]];
cat(Hello,, name, value, , World,)
}
/Henrik
On 9/26/06, Jim Lemon [EMAIL PROTECTED] wrote:
Suzi Fei wrote:
Hello,
How do you print a variable name in a for
On 9/22/06, Gabor Grothendieck [EMAIL PROTECTED] wrote:
See the flag= argument on formatC:
n - 10
formatC(1:n, dig = nchar(n)-1, flag = 0)
# Here is another way:
n - 10
sprintf(paste(%0, nchar(n), .0f, sep = ), 1:n)
sprintf(%0*.0f, nchar(n), 1:n)
or even
sprintf(%0*d, nchar(n), 1:n)
Hmm... sounds like you're on Windows and have the Explorer setup such
that it is hiding file extensions. You can try to use list.files()
from R to see if the files actually have file extension.
If this is your problem, open My Computer - Tools - Folder
Options... and select tab View. Make sure
Hi,
thanks for this. I'll keep it in mind next time in teaching/referring
someone to R. BTW, before the R-core guys get you ;) Just replace
all places where you use library to refer to a package (see all
comments on the definition of these on r-help/r-devel), e.g.
Page 17: FYI, .GlobalEnv is
Have a look at readTable() in the R.utils package. It can do quite a
few thinks like reading subsets of rows, specify colClasses by column
names etc. Implementation was done so that memory usage is as small
as possible. Note the note on the help page: WARNING: This method is
very much in an
Hi,
I'm trying to generate valid R code using R. Parts of the task is to
read a sequence of characters from file and escape them such that they
can be put in quotation marks to form a valid R code string. Example:
Let the input file be (four rows containing ASCII 0-255 characters):
On 5/26/06, Omar Lakkis [EMAIL PROTECTED] wrote:
This is a simple R.oo question but I, thankfully, hope that someone
would explain it to me so I would better understand this work frame.
I create this class:
setConstructorS3(MyExample, function(param=0) {
print(paste(called with param=,
On 5/23/06, Matthew Dowle [EMAIL PROTECTED] wrote:
Hi,
n = 1000
L = list(a=integer(n), b=integer(n))
L[[2]][1:10] gives me the first 10 items of the 2nd vector in the list L.
It works fine. However it appears to copy the entire L[[2]] vector in
memory first, before subsetting it.
On 5/23/06, Matthew Dowle [EMAIL PROTECTED] wrote:
Thanks.
I looked some more and found that L$b[1:10] doesn't seem to copy L$b. If
that's correct why does L[[2]][1:10] copy L[[2]] ?
I forgot, this is probably what I was told in discussion about
UseMethod($) the other day: The $ operator is
saveSubplot - function() {
if (!exists(subplotPars, mode=list))
subplotPars - list();
p - par(no.readonly=TRUE);
mfg - p$mfg;
key - mfg[1]*(mfg[3]-1)+mfg[2];
subplotPars[[key]] - p;
invisible(key);
}
restoreSubplot - function(mfg) {
opar - par();
if (length(mfg) == 2)
mfg
Hi Alex,
author here - thanks for this. Indeed, there is a typo in
MatlabServer.m that gives the error iff the port number is out of
range. So if you set MATLABSERVER_PORT in range it should work.
However, the Matlab code contains a syntax error in that statement
which shouldn't be there. FYI,
@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
--
Henrik Bengtsson
Mobile: +46 708 909208 (+2h UTC)
__
R-help@stat.math.ethz.ch mailing list
https
the posting guide! http://www.R-project.org/posting-guide.html
--
Henrik Bengtsson
Mobile: +46 708 909208 (+2h UTC)
__
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
On 3/18/06, Uwe Ligges [EMAIL PROTECTED] wrote:
pau carre wrote:
Hello, I would like to call a function that can take infinite time to
be executed in some circumstances (which can not be easily detected).
So, I would like that once the function is being executed for more
than two seconds
__
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
--
Henrik Bengtsson
Mobile: +46 708 909208 (+1h UTC
://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
--
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Mobile: +46 708 909208 (+1h UTC)
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
Hi,
there's been plenty of messages sent during that period. The r-help
archive is at https://www.stat.math.ethz.ch/pipermail/r-help/ (you can
find this via http://www.r-project.org/ - Mailing Lists - r-help/web
interface - R-help Archives). There are similar pages for r-devel
and the other
the posting guide! http://www.R-project.org/posting-guide.html
--
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Mobile: +46 708 909208 (+1h UTC)
__
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
-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
--
Henrik Bengtsson
Mobile: +46 708 909208 (+1h UTC)
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting
__
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
--
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Mobile: +46 708 909208 (+1h UTC)
__
R-help
feature in the base package? Any suggestions?
Robert
__
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PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
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Mobile
This is a problem how to convert vector indices to array indices. Here
is a general solution utilizing the fact that matrices are stored
column by column in R (this extends to arrays of any dimension):
arrayIndex - function(i, dim) {
ndim - length(dim); # number of dimension
v -
Hi.
On 3/7/06, hadley wickham [EMAIL PROTECTED] wrote:
[.ggobiDataset - function(x, ..., drop=FALSE) {
x - as.data.frame(x)
NextMethod([, x)
}
[[.ggobiDataset - function(x, ..., drop=FALSE) {
x - as.data.frame(x)
NextMethod([[, x)
}
$.ggobiDataset -
-guide.html
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Mobile: +46 708 909208 (+1h UTC)
__
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On 2/14/06, Duncan Murdoch [EMAIL PROTECTED] wrote:
On 2/14/2006 9:08 AM, Michael Kubovy wrote:
On Feb 14, 2006, at 1:46 AM, Erin Hodgess wrote:
I'm using R in a time series class. ... I have decided to put
together Power Point slides for the teaching. ... I am currently
saving the R
Same in R v2.2.1 patched (2006-01-01 r36947) and Rv2.3.0 (2006-01-01
r36947). /Henrik
Thomas Steiner wrote:
options(chmhelp=TRUE)
help(package=fCalendar)
does not open teh windows help browser, but
help(CalendarData, package=fCalendar)
does. Why? A bug?
I use R 2.1.1 under
Duncan Murdoch wrote:
On 1/13/2006 2:04 AM, Ales Ziberna wrote:
Hello!
[snip]
(I'm a little sensitive about dependencies now, since the LaTeX seminar
template I've used a few times no longer works. It depends on too many
LaTeX packages, and someone, somewhere has introduced
[EMAIL PROTECTED] wrote:
Hello Martin and others,
I am happy with this decision. I'll look a little bit at this next week.
Best,
Philippe Grosjean
We've had a small review time within R-core on this topic,
amd would like to state the following:
Subject: Re: [R] [R-pkgs] sudoku
Date: Sat, 07 Jan 2006 09:36:54 +1100
From: Henrik Bengtsson [EMAIL PROTECTED]
To: Brahm, David [EMAIL PROTECTED]
CC: [EMAIL PROTECTED]
References:
[EMAIL PROTECTED]
Brahm, David wrote:
Any doubts about R's big-league status should be put to rest, now
as a
character during keyboard input. I doubt if that was intentional (0 is
not the default state) and I have changed it for R-devel.\
Thank you very much this.
Henrik
On Sun, 8 Jan 2006, Henrik Bengtsson wrote:
Hi.
Using Rterm v2.2.1 on WinXP, is there a way to interrupt a call like
repeat
Hi.
Using Rterm v2.2.1 on WinXP, is there a way to interrupt a call like
repeat { readline() }
without killing the Command window? Ctrl+C is not interrupting the loop:
R : Copyright 2006, The R Foundation for Statistical Computing
Version 2.2.1 Patched (2006-01-01 r36947)
snip/snip
Ted Freeman wrote:
I'm new to R, after many years of using Matlab. I've found the R
function 'polygon' to be nearly equivalent to the Matlab function
'patch'. For example, the R commands:
plot(c(0, 5), c(0, 4), type = 'n', asp = 1, ann = FALSE)
x - c(1, 2, 2, 1.5, 1)
z - c(1, 1, 2, 1.7,
If R would have timestamps telling when any object was last modified, we
could extend R with a 'GNU make'-style functionality (or syntax)
together with some fancy caching to persistent storage (files, data
bases, ...). That would really nice! As B.R. and M.M. writes,
timestamping is most
Hi,
help on 'mahalanobis' (in the stats package in Rv2.2.0) now says:
Description:
Returns the Mahalanobis distance of all rows in 'x' and the vector
mu='center' with respect to Sigma='cov'. This is (for vector 'x')
defined as
D^2 = (x - mu)' Sigma^{-1} (x -
Vasundhara Akkineni wrote:
I have another issue.i have a function which calculates the log2(col i
/col2) value, where i stands for columns 3,4,...etc.
data-read.table(table.txt, header=TRUE)
iratio-function(x){
for(n in 3:ncol(data)){
z-log2(data[x,n]/data[x,2])
}
}
Where x- the row
See
library(R.basic)
example(plot.histogram)
x1 - rnorm(1000, 0.4, 0.8)
x2 - rnorm(1000, 0.0, 1.0)
x3 - rnorm(1000, -1.0, 1.0)
hist(x1, width=0.33, offset=0.00, col=blue, xlim=c(-4,4),
main=Histogram of x1, x2 x3,
xlab=x1 - blue, x2 - red, x3 - green)
hist(x2,
Vasundhara Akkineni wrote:
I want to retrieve data row wise from a data frame. My data frame is as
below:
data-read.table(table.txt, header=TRUE)
how can i get row-wise data?
Examples:
data[1,]
data[2,]
for (rr in 1:nrow(data))
data[rr,]
rows - c(1, 5:8, 3)
data[rows,]
/Henrik
seq() is good at these kind of things:
keep - seq(from=1, to=nrow(d), by=10)
d1 - d[ keep,]
d2 - d[-keep,]
/Henrik
Juan Pablo Romero wrote:
try this: (if d is the data.frame)
1)
d[ (1:217)[1:217 %% 10 == 0], ]
2)
d[ (1:217)[1:217 %% 10 != 0], ]
2005/11/21, mark salsburg
Mike Miller wrote:
On Wed, 9 Nov 2005, Henrik Bengtsson wrote:
A note of concern: When writing batch scripts like this, be explicit
and use the print() statement. A counter example to compare
echo 1; 2 | R --slave --no-save
and
echo print(1); print(2) | R --slave --no-save
I
Florence Combes wrote:
Thanks a lot for your answer.
In fact I found the solution, it's seems strange to me so I put it here if
it could bu useful for other people ...
I have the same as you
getAnywhere(read.table)$where
[1] package:base namespace:base
Mike Miller wrote:
Many thanks for the suggestions. Here is a related question:
When I do things like this...
echo matrix(rnorm(25*2),c(25,2)) | R --slave --no-save
...I get the desired result except that I would like to suppress the
[,1] row and column labels so that only the values go to
Mike Miller wrote:
On Wed, 9 Nov 2005, Henrik Bengtsson wrote:
What you really want to do might be solved by write.table(), e.g.
x - matrix(rnorm(25*2),c(25,2));
write.table(file=stdout(), x, row.names=FALSE, col.names=FALSE);
Thanks. That does what I want.
There is one remaining
Roger D. Peng wrote:
You might be interested in 'tryCatch' to catch warnings.
A warning here: tryCatch(expr, warning=...) will catch warnings and
interrupt 'expr' (as if an error occured), whereas
withCallingHandlers(expr, warning=...) does not do this.
/Henrik
-roger
Thomas
What version of R and what operating system? What packages do you have
loaded?
Try utils::help.search(tps), does that work? Have you tried it in a
fresh R session, i.e. start with R --vanilla.
If you can't get it to work after this, report the above information
plus what you get from
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