similar to: How to handle large dataframes?

Dear all I want to generate a list like this: a <- data.frame(1:10) attr(a,'myattribute') <- 'something' b <- data.frame(11:20) attr(b,'myattribute') <- 'anything' mylist <- list(a,b) Is there a way to place the dataframes into the list giving them the attribute at the same time? I don't want to create all the dataframes in my workspace first.

Hello I am using R 2.2.0 with Windows XP. I've got a five element list object, each element containing two dataframes of equivalent size. > str(mylist) List of 1 $ data1:List of 2 ..$ data1a :`data.frame': 77 obs. of 63 variables: .. ..$ var1 : num [1:77] 0.41375 0.00056 1.43040 1.43528 0.61730 ... .. ..$ var2 : num [1:77] 1.154 1.686 0.673 0.800 0.760 ... ..

Dear all I've got some problems submitting a manuscript, because I can't manage creating the favourable eps-file of a graph created in R. The journal's graphic requirements are as followed: format: eps width: max. 6 inches resolution: min. 1000 dpi supported fonts: Arial, Courier, Helvetica, Symbol, Times, Charcoal, Chicago, Geneva, Georgia, Monaco, Zapf, New York Itried to ways

Hi R help list I'm simulating logistic regression data with a specified odds ratio (beta) and have a problem/unexpected behaviour that occurs. The datasets includes a lognormal exposure and diseased and healthy subjects. Here is my loop: ors <- vector() for(i in 1:200){ # First, I create a vector with a lognormally distributed exposure: n <- 10000 # number of study subjects

Hi everyone I have the following problem: My dataframe has 3 variables: ID, Year and and an outcome variable. The dataframe contains repeated measurements because the subjects filled out a questionnaire every year. The time span covers 2 years. Now I want to check if there is a significant change in the outcome over the 2 years with a paired wilcox.test. The problem: Not every subject

Dear list, My apologies if a solution / explanation to this already exists on the list, but it is difficult to assign it to a certain keyword. test<-c(1:3) testfct <- function(x) {test[1]<-100} test [1] 1 2 3 testfct(1) [1] 1 2 3 Basically, I would like to write data into an external table that the function does not know. Why is this not working / what alternatives exist? Thanks,

hi, this may be trivial, but we can't seem to find anything adequate, (although there is a work around with match() ). We are looking for something along the lines of plot(table1[table1$var2==or("a","b","c","d"),"var1"]) would be handy, with the potential or() function leading to what plot(table1[table1$var2=="a" |

Dear R-list I am (forced) to change from Linux to Mac and am now looking for a new editor for R. I would like one that features a split window (console + editor) as well as syntax highlighting. Can anyone help? Especially the split-window feature does not seem to be easily available in the editors desribed on the R-help site, except Emacs, which I am reluctant to start using. I am on a MacBook Air

Hello A very short question: Using multiple plots with par(mfrow=c(3,3)), how can I get R to indicate one common y- and x-axis label? I tried to use text() in par, but this is then overwritten when I plot the graphs. -- Sebastian Leuzinger Institute of Botany, University of Basel Schönbeinstr. 6 CH-4056 Basel Ph. 0041 (0) 61 267 3511 fax 0041 (0) 61 2673504 email: Sebastian.Leuzinger@unibas.ch

Dear R-list member, I'm using the function pmnorm() (-->library(mnormt)) within a for-loop. Certain parameter values leads to an error message: "(In sqrt(diag(S)) : NaNs produced, In sqrt(1/diag(V)) : NaNs produced, In cov2cor(S) : diag(.) had 0 or NA entries; non-finite result is doubtful)" obviously because "NaNs" were produced. Is it possible to tell R that it

Hello, anyone got an idea on how to use stl() so that the remainder eventually becomes white noise? i used stl repeatedly but there is autocorrelation in the remainder that i can't get rid of. os: linux suse9.3 ------------------------------------------------ Sebastian Leuzinger Institute of Botany, University of Basel Sch??nbeinstr. 6 CH-4056 Basel ph 0041 (0) 61 2673511 fax 0041 (0)

Hi all Maybe a stupid question, but I'm not able to figure this out from the manpage nor from the HOWTOs... How can I force a user to change his password at next logon? I tried: # pdbedit -P "user must logon to change password" -C 0 -u username # pdbedit -u username -P "user must logon to change password" -C 0 # pdbedit -P "user must logon to change password"

hello, has anyone come across the following rather mysterious problem: when pasting large bits of code (100 and more lines) into the R console with the central mouse button (under linux), only part of the code is pasted, and the text interrupts somewhere arbitrarily. It does not happen when smaller bits are pasted subsequently. I use linux suse 9.3 with the latest version of R

Hi there I want to pass arguments (i.e. the response variable and the subset argument) in a self-made function to glm. Here is one way I can do this: f.myglm <- function(y,subfact,subval) { glm(d.mydata[,y]~d.mydata[,'x1'],family=binomial,subset=d.mydata[,subfact]==subval) } > str(d.mydata) `data.frame': 15806 obs. of 3 variables: $ y : Factor w/ 2 levels

Hi there During execution of sapply I want to extract the number of times the function given to supply has been executed. I came up with: mylist <- list(a=3,b=6,c=9) sapply(mylist,function(x)as.numeric(gsub("[^0-9]","",deparse(substitute(x))))) This works fine, but looks quite ugly. I'm sure that there's a more elegant way to do this. Any suggestion? Christian

Hello Trying to install the MySQL package, I get the following error. The help archive contains something on this issue but did not help. I work on linux suse 9.3 Configuration error: Could not locate the library "libz" required by MySQL. The library libz however is not on any mirrors I checked. ------------------------------------------------ Sebastian Leuzinger web

Hi list I just compiled 3.0rc1 on Solaris 9 (UltraSparc IIe) with gcc 3.3. Seems to work fine but I am surprised by the enormous size of the binaries: (ub-blade1):/usr/local/samba/sbin # ll total 232272 -rwxr-xr-x 1 root other 44719632 Aug 28 15:07 nmbd -rwxr-xr-x 1 root other 89726544 Aug 28 15:07 smbd -rwxr-xr-x 1 root other 44807356 Aug 28 15:07 swat -rwxr-xr-x

Dear Torsten, dear samba list reader Three days ago I switched our domain from a NT 4 domaincontroller to Samba-OpenLDAP, controlled by a Debian Sarge system. I installed the following inofficial Debian OpenLDAP 2.2 packages (I know these are not supported, but TLS with OpenSSL is essential to us...): Package: slapd Version: 2.2.20-1.hrz.1 Package: libldap2.2 Version: 2.2.20-1.hrz.1

Hi everyone I'm using Tukey HSD as post-hoc test following a lme analysis. I'm measuring hemicelluloses in different species treated with three different CO2 concentrations (l=low, m=medium, h=high). The whole experiment is a split-plot design and the Tukey-function from the package multcomp is suitable for lme-analysis with random factors. The analysis works fine but I get a non

Dear R-helpers, I try to perform glm's with negative binomial distributed data. So I use the MASS library and the commands: model_1 = glm.nb(response ~ y1 + y2 + ...+ yi, data = data.frame) and predict(model_1, newdata = data.frame) So far, I think everything should be ok. But when I want to perform a glm with a subset of the data, I run into an error message as soon as I want to predict