On Thu, 7 Apr 2005 [EMAIL PROTECTED] wrote:
Saving Rdata files in a zip archive form can in some cases save a
considerable amount of disk space.
Not if they were saved with compress=TRUE: it is likely to increase the
size of compressed saved images.
R has the zip.file.extract function to extract
David == David Forrest [EMAIL PROTECTED]
on Thu, 7 Apr 2005 16:19:33 -0500 (CDT) writes:
David I think R has the hex to decimal OK, but might be
David lacking in the decimal to hex case
David zz-function(x){ x-as.numeric(sub(#,'0x',x));
David c(x%/%256^2,
Jarmila Bohmanova wrote:
I have just installed R-2.0.1 from R-2.0.1.tar.gz on SUSe 9.1 64bit. When I
am trying to launch R: R_HOME_DIR/bin/R; I am getting following message:
./R: line 151: /R_HOME_DIR/bin/exec/R: No such file or directory
./R: line 151: exec: /R_HOME_DIR/bin/exec/R: cannot
[EMAIL PROTECTED] wrote:
I have read the help file for Adapt, but I cannot
create a functn that works. I believe this is because
I do not understand how to do this, and I have not
found any working examples posted in the help. I have
recieved many different errors in my attempts.
Please post a
NaN only applies to double values: there is no integer NaN (nor Inf nor
-Inf). The difference is clear from
factor(x, exclude=NaN)
[1] 1233NA
Levels: 1 2 3 NA
factor(as.integer(x), exclude=NaN)
[1] 1233NA
Levels: 1 2 3
If you read ?factor it says
exclude: a
I am doing a Principal Component Analaysis (PCA) on a 44x19 matrix.
with
princomp(x,cor=TRUE,scores=TRUE)
and
prcomp(x,scale=TRUE,center=TRUE)
The resulted eigenv. and rotated matrix are the same (as expected), however
the sum of eigenvalues is lower than 19 (number of variables).
With a
On Fri, 2005-04-08 at 11:12 +0200, Alessandro Bigi wrote:
I am doing a Principal Component Analaysis (PCA) on a 44x19 matrix.
with
princomp(x,cor=TRUE,scores=TRUE)
and
prcomp(x,scale=TRUE,center=TRUE)
The resulted eigenv. and rotated matrix are the same (as expected), however
the sum
Trying to do something very simple...
numerical.grad
function(func,x, eps=1e-12) {
# very simple (crude) numerical approximation
f -func(x)
df -1:length(x)
for (i in 1:length(x)) {
dx - x
dx[i] - dx[i] +eps
df[i] - (func(dx)-f)/eps
}
df
}
test-function(x){x^2}
R is a vectorized language, look at this:
fd - function(b, gn, ..., eps=sqrt(.Machine$double.neg.eps)){
n - length(b)
g0 - gn(b, ...)
out - numeric(n)
b. - b + eps*max(abs(b), 1)
c(gn(b., ...) - g0) / (b. - b)
}
##
test - function(x) x*x
fd(seq(0.1, 0.5, 0.1), test)
Donald Ingram wrote:
( Is there a universal vector format I could use ? )
If there were one, you can be sure that Microsoft would take
steps to corrupt their implementation of the ``universal''
format so that material produced by non-Microsoft software
would be
Make gives me following error message:
R_HOME_DIR/src/main/array.c:504: undefined reference to `zgemm'
array.o(.text+0x2526): In function `do_matprod':
R_HOME_DIR/src/main/array.c:472: undefined reference to `dsyrk'
array.o(.text+0x2601):R_HOME_DIR/src/main/array.c:487: undefined reference
to
splus has many different rotation methods,but i can only find 2 in R.i want to
do oblique rotation .has any function for this?
i have search the web,but can not find.
__
R-help@stat.math.ethz.ch mailing list
Hi,
I try to minimize the sum of the sum of sce. The following program has
been
created but it only takes in consideration the last kinetic and not the
first ones. I think that I have forget a subscrib but I don't know
where. so
if you can help me, it will be great
I have
Hi: Thank you and sorry for getting back late. Your input helped me a
lot. I particularly liked using box.cox. Regards,
Ashraf
__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide!
OK. Thanks. So, if you use table() on a factor that contains NA's, but
for which NA is not a level, is there any way to get table to generate an
entry for the NAs? For example, in below, even exclude=NULL will not
give me an entry for NA on the factor y:
x - c(1,2,3,3,NA)
y - factor(x)
y
On Apr 8, 2005 9:05 AM, Paul Rathouz [EMAIL PROTECTED] wrote:
OK. Thanks. So, if you use table() on a factor that contains NA's, but
for which NA is not a level, is there any way to get table to generate an
entry for the NAs? For example, in below, even exclude=NULL will not
give me an
On Fri, 8 Apr 2005, Paul Rathouz wrote:
OK. Thanks. So, if you use table() on a factor that contains NA's, but
for which NA is not a level, is there any way to get table to generate an
entry for the NAs? For example, in below, even exclude=NULL will not
give me an entry for NA on the factor y:
Hello. In SPLUS I am used to comparing nested models in gam using the
anova function. When I tried this in R this doesn't work (the error
message says that anova() doesn't recognise the gam fit). What must I
do to use anova with gam? To be clear, I want to do the following:
fFit1-gam(y~x,.)
On 8 Apr 2005 at 14:20, Prof Brian Ripley wrote:
On Fri, 8 Apr 2005, Paul Rathouz wrote:
OK. Thanks. So, if you use table() on a factor that contains NA's,
but for which NA is not a level, is there any way to get table to
generate an entry for the NAs? For example, in below, even
Dear Bill,
There are anova.gam methods in both the mgcv and gam packages -- perhaps you
have an older version of one of these packages.
I hope this helps,
John
John Fox
Department of Sociology
McMaster University
Hamilton, Ontario
Canada L8S 4M4
Dear Sir/Madam,
I need to install Rmpi Package on my linux debian like, but I get some
errors.
I try to instal it using install.packages or after download and save it
on my local dir and run R CMD INSTALL packagename and, both, I get these
errors:
checking mpi.h usability... no
checking mpi.h
Jarmila Bohmanova wrote:
Make gives me following error message:
R_HOME_DIR/src/main/array.c:504: undefined reference to `zgemm'
array.o(.text+0x2526): In function `do_matprod':
R_HOME_DIR/src/main/array.c:472: undefined reference to `dsyrk'
array.o(.text+0x2601):R_HOME_DIR/src/main/array.c:487:
Is there a way to exclude from the namespace all
variables other than function arguments and local
variables? For example, I would like the following
code
a = 2.0
mult - function(x)
{
pi = 3.14
return(pi*a*x)
}
print(mult(10.0))
to say a not found rather than using a = 2.0 inside
function
On Friday 08 April 2005 09:50, Vivek Rao wrote:
Is there a way to exclude from the namespace all
variables other than function arguments and local
variables? For example, I would like the following
code
a = 2.0
mult - function(x)
{
pi = 3.14
return(pi*a*x)
}
print(mult(10.0))
Hello,
I have created a .dll file using G77 and MinGW on my PC (Windows
2000). After using dyn.load to bring it into R2.0.1, I then call the .dll
through the function ccprox shown below. It returns the correct
values. If I run it a second time though it returns different values, so
it seems
Hello,
how can I use the function cor() with x and y in function
aggregate() or by()?
The data are like this:
x y group
1 4 B
2 4 B
3 5 C
I would like obtain the correlation between x and y for each subset. I
don't want to use the workaround with the function subset(), because I
Thomas Lumley [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Yes, and convertColor in R-devel does quite a few of these (XYZ
tristimulus space; CIE Lab and Luv; sRGB, Apple RGB and roll-your-own
RGB based on chromaticities of the primaries; and chromatic adaptation for
changing the
At 11:04 AM 4/8/2005, you wrote:
Hello,
I have created a .dll file using G77 and MinGW on my PC (Windows
2000). After using dyn.load to bring it into R2.0.1, I then call the .dll
through the function ccprox shown below. It returns the correct
values. If I run it a second time though it
Thanks Bill and Deepayan for the panel function idea.
Somehow I've always associated the panel
functions with lattice -- not sure why, but thanks for
pointing out their more universal applicability.
Anne
On Thu, 7 Apr 2005, Deepayan Sarkar wrote:
DS On Thursday 07 April 2005 17:51, Anne York
This is my second posting on this topic, the first recieved no
replies. Has anyone successfully used RODBC on the OS X platform?
I've tested the ODBC drivers I'm using with two other applications and
I've had no problems. I begining to think the problem is with R/RODBC
and not the drivers.
R2.0.1
x-matrix(rnorm(44*19),nrow=44)
princomp(x,cor=TRUE,scores=TRUE)
Call:
princomp(x = x, cor = TRUE, scores = TRUE)
Standard deviations:
Comp.1Comp.2Comp.3Comp.4Comp.5Comp.6Comp.7Comp.8
1.5874672 1.4652217 1.3088833 1.2339949 1.1697727 1.1402570 1.0774402
Christfried Kunath wrote on 4/8/2005 10:39 AM:
Hello,
how can I use the function cor() with x and y in function
aggregate() or by()?
The data are like this:
x y group
1 4 B
2 4 B
3 5 C
I would like obtain the correlation between x and y for each subset. I
don't want to use the
Earl F. Glynn wrote:
I recently discovered R's writeBin and readBin functions. readBin, in
particular, looks like an extremely powerful tool for loading external
files. This might be an easier way to perform some one-time data
manipulations instead of writing a separate C, Perl or Delphi program
Hi all,
I was hoping that someone could verify this for me-
when I run princomp() on a matrix, it is my understanding that the scores
slot of the output is a measure of how well each row correlates (for lack of
a better word) with each principal component.
i.e. say I have a 300x6 log2 scaled
Does anyone have experience in using boot or bootstrap for ERP data
analysis?
Event-related potentials (ERPs) are electrical recordings from the human
scalp during the presentation of stimulus events. They are a timeseries with
msec resolution. They are essentially a timeseries that are
Greetings everyone,
I was wondering if anyone had experience in using fda (flexible discriminant
analysis) in the mda package. Specifically, I can run the model but I cant
locate/produce much of anything beyond the predicted values and confusion
matrix. I've been searching for more examples or
I'm having trouble understanding how functions in the subset argument for
lmList search for the objects they need. This trivial example produces
Error in rownames(fakedf) : Object fakedf not found:
library(nlme)
fitbyID - function() {
fakedf - data.frame(ID = gl(5, 10, 50),
Hi, people.
Two days ago, I sent to this list a little toy for exploring
polynomiographs (yet, the mathematical formulas were not polynomials
anymore, so the name is not really appropriate).
After studying R calls, expressions and functions a bit more, I gave
myself the homework of producing an
Dear R
I am trying to plot some Principle component scores against the individual
variables that made the first biplot.
First I need to identify some points in the plot as follows
running2 - running[c(USA, New Zealand, Dominican Republic, Western
Samoa, Cook Islands),]
this works fine,
I then
This volume now has extensive documentation on the following R packages.
Issue 8: EbayesTresh (Johnstone/Silverman)
Issue 6: spatstat (Baddeley/Turner)
Issue 5: drc (Ritz/Streibig)
Issue 4: normalp (Mineo/Ruggieri)
Issue 3: R2WinBugs (Sturtz, Ligges, Gelman)
Issue 1: BradleyTerry (Firth)
Package
Folks-
I have developed a package which I am planning on posting to CRAN.
I include examples for each of the 40 or so functions in the package.
However, since the examples are non-trivial and the package is
using MCMC simulation methods, it takes about 20 minutes to run the complete
set of
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