similar to: Problem compiling R-Patched

To enhance my understanding, and that of my students, I have a question about cox.zph in the survival package. If I have correctly gleaned the high-level point from the 1994 Biometrika paper of Grambsch and Therneau, it looks to me like cox.zph provides a mechanism to test for a simple trend in plots of a function of time, g(t) versus the scaled schoenfeld residuals and it also provides some

I just upgraded to version 2.1.1 (from 2.0.1) today. > R.version _ platform i686-pc-linux-gnu arch i686 os linux-gnu system i686, linux-gnu status major 2 minor 1.1 year 2005 month 06 day 20 language R I am using SuSE 9.2 and did the upgrade using rpm -U with the RPM available on CRAN. After upgrading r-base, I ran update.packages(). Four previously

Hello. I have grown accustomed to the .Data directory in S-Plus and so when I came to R I continued that behaviour by saving my workspaces at the end of each R session. So, I have saved workspaces in various directories where I have used R just as I would have had various .Data directories where I had used S-Plus. I have seen comments on the list, most recently from Prof. Ripley that they

I downloaded R-patched (2005-08-04) from CRAN today. I ran ./configure --enable-R-shlib I received the error message: checking for recommended packages... no configure: error: Some of the recommended packages are missing Use --without-recommended-packages if this was intentional I built a previous version of R-patched successfully on my system which is running the SuSE 9,2 Pro Linux

I beg your pardon if this is too off topic. I am posting here since I hope to find an R solution to my problem. Please indulge me while I give a little background about what I'm trying to do. I'm on a DSMB for a clinical trial. The Steering Committee for the trial has asked us to perform a futility analysis on their primary outcome which is a time-to-event endpoint. The trial was not

I'm having trouble getting fun="cloglog" to work with plot on a survfit object. Here are the data I used for the commands that follow. days status 2 0 2 0 5 1 9 0 14 1 16 0 16 0 17 0 29 1 30 0 37 1 37 0 39 1 44 0 44 0 58 0 60 1 67 1 68 1 82 1 82 1 86 0 86 0 89 1 93 0 97 1 100 0 100 0 100 0 > library(survival) Loading required package: splines > eg1.km <-

I'm sure this is simple enough, but an R site search on my subject terms did suggest a solution. I have a numeric vector with many values that I wish to create a factor from having only a few levels. Here is a toy example. > x <- 1:10 > x <-

I tried to use write.foreign() to export to SAS this morning and got an error. When I looked at the code for writeForeignSAS() I saw this line: dfn < -df which I think should be dfn <- df So, I tried to run update.packages() to see if there was an updated version and got the following result. > update.packages(c("foreign")) Warning message: In list.files(lib) :

I was messing around with some data in R and SAS (the reason is unimportant) fitting a multiple linear regression and got a curious discrepancy. The data set is too big to post, but if someone wants it, I can send it. So, here are the (partial) results: From R: Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 61.11434 1.48065 41.275 < 2e-16 *** sexWomen

Hello. I am posting this on behalf of a student in my class. I have been introducing them to R. I suspect that the problem I need help with is not so much an R issue, but a MAC config issue, but I don't have enough MAC experience to know what to do. Anyway, on to the problem. We are using Frank Harrell's Hmisc and Design packages. This student also wishes to use the latex formatting

Is it an undocumented (at least I missed it if it's documented) feature of the reshape function to do numeric variables followed by character? I ask because that seems to be the case below. > str(rcw) 'data.frame': 23 obs. of 21 variables: $ ICU : int 1 18 17 9 22 19 6 16 25 26 ... $ Q6.RC.1 : chr "SM" "JF" "IW"

Hi friends, I'm beginning in R and I have simple question. I have this piece of my program and how you see, that's ok (whit > num<- 0.002) num<-0.002 # ok, but not when I change whit num<-0... ? factor1<-1; while(1) { if (num*factor1<1) factor1<-factor1*10 else { print("out ok!!"); break; } } [1] "out ok!!" but when I change (whit >

I seem to remember reading somewhere about some style guide regarding R the number of comment characters (#) prior to the comment meaning something. Anyone know to what I'm referring? Where? ---------------------------------------------------------- SIGSIG -- signature too long (core dumped)

> From: Duncan Murdoch <murdoch at stats.uwo.ca> > To: ramasamy at cancer.org.uk > Date: Fri, 10 Mar 2006 08:33:09 -0500 > Subject: Re: [R] To improve my understanding of workspaces > Other than Emacs, I use the same work habits as Adai. An advantage of > this workflow is that almost everything is stored in text format, so it > is easy to compare different versions to

Dear all, I have created the following data (that you can run) in order to explain my problem: y <- rep(c(1,2), 8) id <- rep(1:8,each=2) x1 <- rep(c("-a","+a"), each = 8) x2 <- rep(c("-b","+b"), each = 2, times = 4) x3 <- rep(c("-c", "+c"), each = 4,2) df <- data.frame(cbind(id,y,x1,x2,x3)) If I do:

Dear all, I apologize if this is a FAQ (seems a bit like one, but I didn't find anything). I'm looking for an easy way to cut one value out of a vector and shorten the vector accordingly. Something like: x <- c(1, 1, 0, 6, 2) throwaway(x[3]) which will return x = 1 1 6 2, with length(x) = 4. I know one could do this by hand, but then one would have to create a second vector y in a

Hello. In this post: http://finzi.psych.upenn.edu/Rhelp10/2010-March/233815.html Uwe Ligges suggests using BRugs rather than R2WinBUGS under windows. He also notes that it is not in the main CRAN repository, but it is in "extras" which is a default repository under windows. I have OpenBUGS 3.1.0 (the latest that has a native Linux version which is no longer called linBUGS)

Hi, I am using Sweave for chapters in my thesis that contain results. In the beginning of each chapter, I use this to load libraries I need. <<init,echo=FALSE,quiet=TRUE>>= library(gplots) library(Hmisc) library(e1071) @ What I want is, of course, to supress messages written by this code, but what I get in the end is X-init.tex with this the contents below. How do I really supress

Sorry. Let me try again then. I am trying to find "significant" predictors" from a list of about 44 independent variables. So I started with all 44 variables and ran drop1(sep22lr, test="Chisq")... and then dropped the highest p value from the run. Then I reran the drop1. Model: MIN_Mstocked ~ ORG_CODE + BECLBL08 + PEM_SScat + SOIL_MST_1 + SOIL_NUTR + cE + cN +

Hello. I am having a problem directing the results of xYplot in the Hmisc package to a file. First I'll give you my sessionInfo and then my data and code, afterwhich I'll describe my problem. > sessionInfo() R version 2.4.1 Patched (2007-02-26 r40806) i686-pc-linux-gnu locale: