similar to: R-intro

Displaying 20 results from an estimated 4000 matches similar to: "R-intro"

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
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
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
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 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
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
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 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
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 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 Mar 20
2
levels for list and data.frame
Hello! Does R core find the following pacth usefull - I created methods for levels for list and data.frame, which can be usefull to get a list of levels for entries in a list or columns in a data.frame. Patch is attached and shown bellow example # Example > tmp <- list() > tmp$a <- factor(letters[1:10]) > tmp$b <- factor(letters[5:14]) > tmp$c <- 1:10 > tmp1 <-
2006 Aug 01
1
Global setting for na.rm=TRUE
Hello! Is it possible to set na.rm=TRUE in a global way? I'am constantly forgeting on this when performing analyses. I agree that one should be carefull with this when developing some code, but not necesarilly so in data analysis. Lep pozdrav / With regards, Gregor Gorjanc ---------------------------------------------------------------------- University of Ljubljana PhD student
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
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
2006 May 20
3
How long is winepath available?
Hello! Can someone provide me an estimate or relevant source of information on how long is command winepath available or from wich version of wine? I would need this as I work on some R[1] package R2WinBUGS[2] that calls a Windows program WinBUGS[3] and that program needs windows paths. Currently winepath or parsing of .wine/config is used and I wonder if I can remove fiddling with .wine/.config.
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
2004 Nov 26
2
hist and truehist
Hello! Up to now I have been using hist() to display the distributions. Howevere, I noteiced strange numbers on y (vertical) axis, if I used probability = T or freq = F option. I thought it is a bug and launched the R-bug system and found some posts on that matter. Brian Ripley responded to one, that one should look at truehist() for that. Ok I can use truehist() if I want to see the ratios