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Hi all, When I tried to install package randomForest, it gave out the following error message: " > install.packages("randomForest", dependencies = TRUE) trying URL 'http://www.lmbe.seu.edu.cn/CRAN/src/contrib/randomForest_4.5-12.tar.gz' Content type 'application/x-gzip' length 82217 bytes opened URL ================================================== downloaded 80Kb Cannot create directory "": No such file or directory * Installing *source* package '...

the error msg is: > local({pkg <- select.list(sort(.packages(all.available = TRUE))) + if(nchar(pkg)) library(pkg, character.only=TRUE)}) Error in if (RWinEdtVersion) RWinEdtVersion <- scan(file.path(InstallRoot, : argument is of length zero Error: .onAttach failed in 'attachNamespace' Error: package/namespace load failed for 'RWinEdt' > version _

Hi RUsers, I am wonder if I can search observations whose IDs matches any of the values in another vector, such as in MySQL. While I am learing MySQL for future database management, I appreciate if anyone could give me a hint. Suppose I have one 5*1 vector containing observation IDs and frequencies, and one 3*1 vector containing observation IDs. observation<-c(1,2,3,4,5) ID<-c(1,3,4)

Hello, I'm curious to know how people are calling R from web applications (I've been looking for Perl but I'm open to other languages). After doing a search, I came across the R package "RSPerl", but I'm having difficulties getting it installed (on Mac OSX). I believe the problem probably has to do with changes in R since the package release. Below you will see where