Displaying 20 results from an estimated 2000 matches similar to: "Dealing with NA's in a data matrix"
2005 Apr 24
1
R CMD check doesn't stop with checking examples
Hello!
I am building a package, which includes also one Fortran subroutine,
which works fine if I compile it as a shared library and load it into
R via dyn.load(). However, when I launch R CMD check it doesn't stop
with checking examples. It's just doing and doing ... I pasted the
whole output from R CMD check. Does anyone have any suggestions?
I'm still using R 2.0.1.
2007 Feb 07
6
setting a number of values to NA over a data.frame.
This is probably a simple problem but I don't see a
solution.
I have a data.frame with a number of columns where I
would like 0 <- NA
thus I have df1[,144:157] <- NA if df1[, 144: 157] ==0
and df1[, 190:198] <- NA if df1[, 190:198] ==0
but I cannot figure out a way do this.
cata <- c( 1,1,6,1,1,NA)
catb <- c( 1,2,3,4,5,6)
doga <- c(3,5,3,6,4, 0)
dogb <- c(2,4,6,8,10,
2005 Mar 25
4
Gmail invitation
Hello R users!
I just found out that I have 49 invitations for Gmail (gmail.google.com).
I have been using it now for a while and is really nice. Don't forget
1 GB for free.
I will invite those who respond to this mail by FIFO.
--
Lep pozdrav / With regards,
Gregor Gorjanc
------------------------------------------------------------------------
University of Ljubljana
Biotechnical
2005 Feb 22
6
Run Sweave and LaTeX directly from command line
Hello!
Those of you, who use Sweave a lot, will probably find my shell script
usable. You can get it at:
http://www.bfro.uni-lj.si/MR/ggorjan/programs/shell/Sweave.sh
No warranty, however don't hesitate to contact me if you find an error or
have a patch!
--
Lep pozdrav / With regards,
Gregor GORJANC
---------------------------------------------------------------
University of
2006 Jul 02
4
Test for argument in ...
Hello!
Say I have a function foo1, which has argument ... to pass various
arguments to foo2 i.e.
foo1 <- function(x, ...)
{
foo2(x, ...)
}
Say that foo2 accepts argument arg1 and I would like to do the following:
- if foo1 is called as foo1(x) then I would like to assign some value to
arg1 inside foo1 before calling foo2
arg1 <- "some value"
foo2(x, arg1=arg1)
- if foo1 is
2005 Feb 23
4
Sweave and \input or \include LaTeX commands
Hello!
I was just wondering if Sweave can work with \input or \include
LaTeX commands. So, is it aware of such a possible hierarchy in
documents. I would test that, but I don't have such a report
available at the moment.
I thought of that when I was writting shell script for Sweave
from command line and I have solved that part there.
--
Lep pozdrav / With regards,
Gregor GORJANC
2004 Dec 31
4
R-intro
Hello!
I was reading R-intro and I have some suggestions:
R-intro.html#A-sample-session
rm(fm, fm1, lrf, x, dummy)
suggestion
rm(fm, fm1, lrf, x, y, w, dummy)
The next section will look at data from the classical experiment of Michaelson and Morley to measure the speed of light.
file.show("morley.tab")
mm <- read.table("morley.tab")
suggestion
mm <- data(morley)
2005 Mar 27
3
F90
Hello!
Has anyone successfully compiled F90 sources in R-package? I found the
same question on r-devel list from 2002 and I wonder if there is any
progress. I heard that g95 and gfortran can be usable.
And one more thing. I have a program written in F90 and lets suppose that
compiler is not a problem. I've read manual 'Writing R Extensions' and
successfully loaded one F77 subroutine
2005 Mar 27
3
F90
Hello!
Has anyone successfully compiled F90 sources in R-package? I found the
same question on r-devel list from 2002 and I wonder if there is any
progress. I heard that g95 and gfortran can be usable.
And one more thing. I have a program written in F90 and lets suppose that
compiler is not a problem. I've read manual 'Writing R Extensions' and
successfully loaded one F77 subroutine
2007 May 19
4
GPG key for Ubuntu packages
Hi!
Is anyone experiencing the following:
$ gpg --keyserver subkeys.pgp.net --recv-key E2A11821
gpg: requesting key E2A11821 from hkp server subkeys.pgp.net
gpg: keyserver timed out
gpg: keyserver receive failed: keyserver error
Regards, Gregor
2005 Feb 07
2
Programming/scripting with "expressions - variables"
Hello to Rusers!
I am puzzled with R and I really do not know where to look
in for my problem. I am moving from SAS and I have difficulties
in translating SAS to R world. I hope I will get some hints
or pointers so I can study from there on.
I would like to do something like this. In SAS I can write
a macro as example bellow, which is afcourse a silly one but
shows what I don't know how
2004 Nov 12
4
How to get mode (the most frequent value in distribution)?
Hello!
I have a continous distribution and would like to get mode (the most
frequent value in distribution). I easily found mean, median and other
basic thing but not mode function. Can anyone help?
I know there my might be problems with multiple modes, but still I think
that there should be a mode function in R.
Please send mail to R-help list and me, so I can get response faster.
Thank
2006 Feb 10
8
Fitdistr and MLE for parameter lambda of Poisson distribution
Hello!
I would like to get MLE for parameter lambda of Poisson distribution. I
can use fitdistr() for this. After looking a bit into the code of this
function I can see that value for lambda and its standard error is
estimated via
estimate <- mean(x)
sds <- sqrt(estimate/n)
Is this MLE? With my poor math/stat knowledge I thought that MLE for
Poisson parameter is (in mixture of LaTeX
2005 Jun 08
6
Random seed problem in MCMC coupling of chains
Hello!
I am performing coupling of chains in MCMC and I need the same value
of seed for two chains. I will show demo of what I want:
R code, which might show my example is:
niter <- 3
nchain <- 2
tmpSeed <- 123
for (i in 1:niter) { # iterations
for (j in 1:nchain) { # chains
set.seed(tmpSeed)
a <- runif(1)
cat("iter:", i, "chain:", j,
2005 Apr 24
4
Upgrading R
Hello!
New version of R has came out and I would like to thank to all developers
on this matter. So I should probably upgrade. Fine and no problem. For
windows I just grab the latest precompiled binnaries and install them. Then
I see a report on a bug, which is or will be fixed in pacthed version. So
I need to get binnaries from patched build and install them, right?
How often do you people
2005 Apr 24
4
Upgrading R
Hello!
New version of R has came out and I would like to thank to all developers
on this matter. So I should probably upgrade. Fine and no problem. For
windows I just grab the latest precompiled binnaries and install them. Then
I see a report on a bug, which is or will be fixed in pacthed version. So
I need to get binnaries from patched build and install them, right?
How often do you people
2005 May 08
2
Extract just some fields from XML
Hello!
I am trying to get specific fields from an XML document and I am totally
puzzled. I hope someone can help me.
# URL
URL<-"http://eutils.ncbi.nlm.nih.gov/entrez/eutils/efetch.fcgi?db=pubmed&id=11877539,11822933,11871444&retmode=xml&rettype=citation"
# download a XML file
tmp <- xmlTreeParse(URL, isURL = TRUE)
tmp <- xmlRoot(tmp)
Now I want to extract only
2007 Dec 06
3
Warnings
Hi
I get the following warings on my ubuntu (gutsy) machine
> library(matrix)
> data.frame(x=1:5, z=5)[1:5, ]
x z
1 1 5
2 2 5
3 3 5
4 4 5
5 5 5
Warning message:
':::' is deprecated.
'methods' is deprecated.
'seemsS4Object' is deprecated.
Use 'isS4' instead.
See help("Deprecated")
It is quite annoying since I often subset the data.frames. Will
2005 Jan 05
5
Converting integers to chars i.e 1 to "01"
Hello!
I am producing a set of images and I would like them to be sorted by names
I give. I was able to produce my names and add integer to them. That is
easy. But my problem lies in sort of file from this process:
figure_10.png
figure_11.png
figure_12.png
...
figure_1.png
figure_20.png
...
So I would like to convert integers to something like 01 if upper limit for
this conert is 10 or 001
2006 Aug 07
2
Constrain coefs. in linear model to sum to 0
Hello!
I would like to use constrain to sum coeficients of a factor to 0 instead
of classical corner contraint i.e. I would like to fit a model like
lm(y ~ 1 + effectA + effectB)
and say get parameters
intercept
effectA_1
effectA_2
effectB_1
effectB_2
effectB_3
where effectA_1 represents deviation of level A_1 from intercept and
sum(effectA_1, effectA_2) = 0 and the same for factor B.
Is