On Wed, 8 Sep 2004, Erich Neuwirth wrote:
The function I need is
valtype-function(x)
typeof(ifelse(is.factor(x),levels(x),x))
It is easy enough to write.
Are there any other special cases where the values
and the storage mode differ?
All classed objects are more than the internal
On Thu, 9 Sep 2004, Erich Neuwirth wrote:
The simple answer to my problem (are the values of a vector
numeric or not) is is.numeric, and that is enough for
what I need right now.
But this way I do not get an answer discriminating between
integers and and doubles. What is the canonical way of
Thnks to Prof. Frank E Harrell Jr , Prof. Bernardo Rangel Tura, and Prof.
Thomas Lumley for their response.
Tomas Karpati (MD)
The Michaelson Institute for the prevention of Blindness
Hadassah Medical Org.
email: [EMAIL PROTECTED]
Phone: +972-2-6256458, fax: +972-2-6232895
On Tue, 07 Sep 2004
On Wed, 8 Sep 2004, Niggley, Jason wrote:
As I am installing R for windows, I get the following error:
C:\ProgramFiles\R\rw1091\library\stats\chtml\stats.chm
Is that really not Program Files?
An error occurred while trying to copy a file:
The source file is corrupted.
Can you help
Dear All,
For the following C code:
SEXP testR(SEXP rho) {
SEXP evalStr,evalRes;
Char cmdstr[1024];
SEXP val;
/* Get the value of variable 'val' defined already in the R
environ */
PROTECT(val =
On Wed, 2004-09-08 at 21:31, Doran, Harold wrote:
Thank you. Quick clarification. isoMDS only works with dissimilarities.
Converting my similarity matrix into the dissimilarity matrix is done as
(from an email I found on the archives)
d- max(tt)-tt
Where tt is the similarity matrix. With
On Thu, 2004-09-09 at 04:53, Kjetil Brinchmann Halvorsen wrote:
Mardia, kent Bibby defines the standard transformation from a
similarity matrix to a dissimilarity
(distance) matrix by
d_rs - sqrt( c_rr -2*c_rs + c_ss)
where c_rs are the similarities. This assures the diagonal of the
(R 1.9.1; Windows 2000;)
I'm just comparing ease of use, speed, etc for methods of transferring data frames in
the Excel, MySQL, R triangle. It turns out that going from Excel to R (when doing this
carefully). Using the clipboard is actually quite fast and efficient (2 seconds for
On Wed, 2004-09-08 at 21:25, hadley wickham wrote:
On my computer, it seems that (binary?) packages installed through the
GUI in RAqua are not used available to the command line version of R,
while (source) packages installed with R CMD INSTALL are available to
both. This is a problem when I
Prof Brian Ripley wrote:
'odbcConnect' establishes a connection to the dsn, and
'odbcDriverConnect' allows a more flexible specification via a
connection string. 'odbcConnect' uses the connection string
'DSN=dsn;UID=uid;PWD=pwd'.
The point here seems to be that odbcConnect is
Dear R-users,
I would like to do a image plot with patterns filling the squares instead of colors.
How can I do it?
Is there manuals with examples of image.plot? I search but could not find many.
Thank you
All the best
Marta
[[alternative HTML version deleted]]
I am sorry to ask such question, but I can't find a solution...
I have a dataframe 'd2004' and I want to remove two columns:
'd2004$concentration' and 'd2004$stade.
I could do it just as follows:
names(d2004)
[1] Localite Date parcelle maille
presence.plant
On Thu, 9 Sep 2004, Ritter, Christian C MCIL-CTANL/S wrote:
(R 1.9.1; Windows 2000;)
I'm just comparing ease of use, speed, etc for methods of transferring
data frames in the Excel, MySQL, R triangle. It turns out that going
from Excel to R (when doing this carefully). Using the clipboard
Jacques VESLOT wrote:
I am sorry to ask such question, but I can't find a solution...
I have a dataframe 'd2004' and I want to remove two columns:
'd2004$concentration' and 'd2004$stade.
d2004$concentration - NULL
d2004$stade - NULL
Hope it helps!
Thomas P.
Hi,
Use
Newdata - subset(d2004, select=-c(concentration,stade))
See ?subset for details
Best,
Matthias
-Ursprüngliche Nachricht-
Von: Jacques VESLOT [mailto:[EMAIL PROTECTED]
Gesendet: Donnerstag, 09. September 2004 12:38
An: [EMAIL PROTECTED]
Betreff: [R] Indexing dataframe
Here's my guess:
R CMD INSTALL installs to .Library, and does not look at R_LIBS unless set
in its environment.
install.packages() installs at .libPaths()[1], and uses all the library
trees available. So if you have R_LIBS set in ~/.Renviron (as I have), or
.libPaths() set in .Rprofile or
Thank you. I use the same matrix on cmdscale as I did with isoMDS. I have reproduced
my steps below for clarification if this happens to shed any light.
Here is the original total matrix (see opening thread if you care how this is created)
a b c d e f g h
a 4 4 2 4 1 2 0 0
b 4 4 2 4 1 2 0 0
Dear Elizabeth,
When I looked for this a couple of years ago, I found DF's to be discussed in
the book by Pinheiro Bates Mixed effects models for S and S-Plus, as well
as the documentation for SAS's PROC MIXED (I believe that the discussion on
df's on the SAS manual was more complete than on
On Thu, 2004-09-09 at 14:25, Doran, Harold wrote:
Thank you. I use the same matrix on cmdscale as I did with isoMDS. I
have reproduced my steps below for clarification if this happens to
shed any light.
--- snip ---
Doran,
Your data clarified things. It seems to me now, that your data are not
I get the following message:
Error in isoMDS(tt) : zero or negative distance between objects 1 and 2
This makes sense since a and b are identical in their relationship to c to
h.
Drop row 1 and col 1 and you get
isoMDS(tt[2:8,2:8])
initial value 14.971992
iter 5 value 8.027815
iter 10 value
Dear R-list people,
I asked a similar question a few hours before. I will try to be more specific.
We like to add the GSL library to the file SHLIB in order to make it possible to run
the C code using GSL functions from R.
We read that the path to the libgsl.a should be added to the line
Thanks Brian for the hint.
Indeed, writeClipboard does not suffer from the 32KB limit. Here is a line which can
put large quantities of data on the clipboard:
writeClipboard(gsub(NA,\#N/A,apply(Alldata,1,paste,collapse=\t)))
this can then be pasted either manually or via a VBA macro into a
thanks to some great hints by Paul Murrel I could solve it: here we are
with one solution (code needs to be cleaned and simplified, but maybe
one can understand it)
###
## create a multifigure setting
nr - 4
nc - 2
opar - par(mfrow = c(nr, nc))
slices - 8
m - matrix(runif(100),10,10)
On Thu, 9 Sep 2004, Vicky Landsman wrote:
Dear R-list people,
I asked a similar question a few hours before. I will try to be more
specific. We like to add the GSL library to the file SHLIB in order to
make it possible to run the C code using GSL functions from R. We read
Read where?
Hello,
I'm doing classification with random Forest using numeric predictor
variables. I would like to know a detail in the tree architecture: to
which side of a node data are sent if , for the split variable, their
value is higer than the split point?
best regards,
Ute Müller
From: Ute
Hello,
I'm doing classification with random Forest using numeric predictor
variables. I would like to know a detail in the tree architecture: to
which side of a node data are sent if , for the split variable, their
value is higer than the split point?
The right, as one
Robert,
I have this quick hack to obtain approximate Shewhart prediction intervals
for variance component models fit with lme (to nitpick slightly,
confidence intervals have the interpretation of containing parameters,
while prediction and tolerance intervals have the interpretation of
Hi,
I was wondering whether there is an implementation of the
Kolmogorov-Smirnov goodness of fit test for discrete, ordinal scale data
in R - I've only managed to find the test for continuous data.
Thanks!
Gila
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Is anyone already in the process of developing copula estimation methods or
porting Prof. Rene Carmona's EVANESCE
(http://www.orfe.princeton.edu/~rcarmona/SVbook/svbook.html)?
JW
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Hi
I think the answer is no. However, I have written a script that implements
the test described in Testing for shifts in the Vertical Distribution of
Plankton using a robust Kolmogorov-Smirnov like Statistic by Smith, Beet
and Solow (1998). The test has the properties you are looking for. If this
Dear all,
I'm having difficulty getting the procedure for discriminant analysis. How can
I specify the forward or backward stepwise analyses of variables into the
model? I'm using lda in MASS and discrimin (ade4). I run R version 1.9.1.
Thanks,
Rogério
Dear Prof. Ripley,
We read the archive thread
http://maths.newcastle.edu.au/~rking/R/help/02b/0547.html
Thank you for your help, we will try to create the Makevars file.
Vicky.
- Original Message -
From: Prof Brian Ripley [EMAIL PROTECTED]
To: Vicky Landsman [EMAIL PROTECTED]
Cc:
Hi,
I have installed the SJava package (see http://www.omegahat.org/RSJava/ )
without any problem.
I was able to run the examples (see
http://www.omegahat.org/RSJava/examples/index.html )
from R, on my R Linux server and directly on the display of the server,
But, if I run theses
Can someone help me with this simple example?
sq - function() {
y - x^2
y
}
myfunc - function() {
x - 10
sq()
}
myfunc()
executing the above in R yields:
myfunc()
Error in sq() : Object x not found
I understand that R's scoping rules cause it to look for x in
On Thu, 9 Sep 2004, Vicky Landsman wrote:
Dear Prof. Ripley,
We read the archive thread
http://maths.newcastle.edu.au/~rking/R/help/02b/0547.html
Things have changed in 2 years in R
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics,
Following the recommendation of Prof. Ripley, I have created the Makevars
file with the line:
PKG_LIBS=-L/usr/lib/libm -lm -L/usr/local/lib/libgsl -lgsl -L/usr/local/lib
/libgslcblas -lgslcblas
in the working directory.
Now I have the code file Example3.c which computes the Bessel function value
Thanks to you both. Setting R_LIBS='~/Library/R/library/' in
~/.Renviron did the trick.
Thanks,
Hadley
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https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide!
Folks:
I would like to propose a new R list, tentatively labeled r-contents. I wish
to briefly explain the purpose and format here and solicit public comments,
pro or con, so feel free to criticize or suggest a better name and other
improvements or alternatives.
R presently consists of a suite
On Thu, 9 Sep 2004, Vicky Landsman wrote:
Following the recommendation of Prof. Ripley, I have created the Makevars
file with the line:
PKG_LIBS=-L/usr/lib/libm -lm -L/usr/local/lib/libgsl -lgsl -L/usr/local/lib
/libgslcblas -lgslcblas
in the working directory.
No, that's not what I
I have the same problem. As far as I can see, the only thing you can do is :
attach(df2)
group=paste(facb,facc,sep= )
bwplot( dv ~ faca | factor(group))
Alex
-Original Message-
From: Leon Barmuta [mailto:[EMAIL PROTECTED]
Sent: September 9, 2004 1:19 AM
To: [EMAIL PROTECTED]
Subject:
I think that a lot of posts on r-help are exactly of the form you
suggest: How do I do X? Answer: Use Y. (Or maybe, Use Y.
And next time RTFM. But so what. The answer is still there.)
Often, when the answer is not of that form, the question is
unclear. In other cases, the questioner is
Anyone saved the upcoming R course announcement
for Princeton and Boston? Please email me...
Thanks
Eugene.
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PLEASE do read the posting guide!
Dear Prof. Ripley,
The GSL reference book explains that lm should be added as well (as far as I
understand, and this is what I saw when I run the file in C in a standard
way). No matter, with lm and without, I get the same picture.
Here is what I get after R CMD SHLIB Example3.c
make: Warning:
In my package, I create a new method for plot with the following signature:
setMethod(plot, signature(x=marrayNorm, y=formula), plot.ma)
where marrayNorm is a class defined in the marray package. After
building and installing my package, I get the following warnings when
I load my package
On Thu, 9 Sep 2004, Vicky Landsman wrote:
Following the recommendation of Prof. Ripley, I have created the Makevars
file with the line:
PKG_LIBS=-L/usr/lib/libm -lm -L/usr/local/lib/libgsl -lgsl -L/usr/local/lib
/libgslcblas -lgslcblas
in the working directory.
That should probably look
In R 2.0.0-to-be I think putting marray in the Depends: field will
solve your problem. Otherwise, you might want to import the
marrayNorm class in your NAMESPACE file.
-roger
hadley wickham wrote:
In my package, I create a new method for plot with the following signature:
setMethod(plot,
On Thu, 9 Sep 2004 12:01:56 -0400 , Whit Armstrong
[EMAIL PROTECTED] wrote :
Can someone help me with this simple example?
sq - function() {
y - x^2
y
}
myfunc - function() {
x - 10
sq()
}
myfunc()
executing the above in R yields:
myfunc()
Error in sq() : Object
On Thu, 9 Sep 2004, Vicky Landsman wrote:
Dear Prof. Ripley,
The GSL reference book explains that lm should be added as well (as far as I
understand, and this is what I saw when I run the file in C in a standard
way). No matter, with lm and without, I get the same picture.
Here is what I get
[EMAIL PROTECTED] wrote:
R/S-plus Course***In Princeton Boston,***R/Splus Fundamentals
and Programming Techniques, september - October, 2004
XLSolutions Corporation (www.xlsolutions-corp.com) is proud to
announce 2-day R/S-plus Fundamentals and Programming
Techniques.
Princeton,NJ
Unfortunately, marrayClasses doesn't seem to have a namespace:
library(maVis)
Error in loadNamespace(imp[[1]], c(lib.loc, .libPaths()), keep.source) :
package 'marrayClasses' does not have a name space
Error in library(maVis) : package/namespace load failed
Any other ideas?
Hadley
Hello,
My name is Lisa and I'm a statistician at Princess Margare Hospital. I
wonder if there is any function in R that calculate the Normal rankits
based on Blom's approximation?
Thank you very much
Lisa Wang Msc.
Princess Margaret hospital
Toronto, Ca
On Thu, 9 Sep 2004, hadley wickham wrote:
Unfortunately, marrayClasses doesn't seem to have a namespace:
library(maVis)
Error in loadNamespace(imp[[1]], c(lib.loc, .libPaths()), keep.source) :
package 'marrayClasses' does not have a name space
Error in library(maVis) :
Hello there,
My name is Lisa and I'm doing analysis using genelized linear model-GEE
model because I have some repeated measurements on the same patients (in
a bilateral eye disease case). It would be very appreciated if you could
shed some light on what function to use in R.
Thank you very
You need not use Blom's approximations. Exact values to several decimal
places are given by normOrder() in SuppDists.
Lisa Wang wrote:
Hello,
My name is Lisa and I'm a statistician at Princess Margare Hospital. I
wonder if there is any function in R that calculate the Normal rankits
based on
I recently came across Rslides.sty during a web search and was not aware
of it. However, I can't seem to get it to actually work (I use miktex
and the texniccenter distribution for Windows).
Does anyone have a sample tex file with this style to share? Second, I
looked around the R web site to
As Prof. Ripley said, twice already: seek local expert help. If you don't
know who that is, start with the person that setup your user account on that
machine. Such system-specific problem is much easier to resolve that way,
instead of having others on the list guessing.
Andy
From: Vicky
What is an RDA file ? I was trying to work through a turorial on cluster
analysis using R and bioconductor.
The data files in the library are stored as RDA files. Its part of the
golubEsets library.
Cheers ../Murli
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Hello List,
I am looking for efficient code to produce the Cartesian product of two
or more data.frames. I'd like to be able to do this without resorting to
looping. I have searched the FAQ, web, etc without luck. That being
said, the help page for merge says that the function can produce what
Dear Mark,
See ?factanal for a factor-analysis function, in the standard stats package
(though factanal does ML factor analysis and not principal axes). Note that
help.search(factor analysis) turns this up.
With respect to your last question, it's not possible to know the source of
the
Dear Bert,
I believe that you've identified an important issue -- and one that's
occasionally been discussed on this list previously -- but I'm not sure that
another email list is a good solution. Some method of indexing functions in
packages that would allow people to more easily locate them
See ?save and ?load.
Andy
From: T. Murlidharan Nair
What is an RDA file ? I was trying to work through a turorial
on cluster
analysis using R and bioconductor.
The data files in the library are stored as RDA files. Its
part of the
golubEsets library.
Cheers ../Murli
Thanks John for the post - I had found factanal
However factanal it seems you have specify the number of factors to be
fitted
up front, whereas with the SAS procedure you don't - this is apparently
important
to the analysis!
Perhaps I could emulate this function by breaking it down using factor
Timothy W. Victor tvictor at dolphin.upenn.edu writes:
I am looking for efficient code to produce the Cartesian product of two
or more data.frames.
First create some test data consisting of a list of n=2 data frames.
data(iris)
L - list(iris1 = iris[1:3,1:2], iris2 = iris[1:3,3:4])
On Thu, 9 Sep 2004, Murli Nair wrote:
Is there a method that converts a csv file to a data frame ?
There are R _functions_, if that is what you are asking. (method is
a technical term in R.)
Try help.search(csv), which gives me one entry.
--
Brian D. Ripley, [EMAIL
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