Install R package from source, without changing PATH (Windows)

Question

I\'m trying to install package rpart for R-2.14.0 on Windows 7, but I get the warning:

package ‘rpart’ is not available (for R version 2.

Answer 1

Since you have to set the PATH, but you're hesitant to do so because you're afraid you may hose something up, you can do it temporarily in your R session via:

pathRtools <- paste(c("c:\\Rtools\\bin",
  "c:\\Rtools\\MinGW\\bin",
  "c:\\MiKTeX\\miktex\\bin",
  "c:\\R\\bin\\i386",
  "c:\\windows",
  "c:\\windows\\system32"), collapse=";")
Sys.setenv(PATH=paste(pathRtools,Sys.getenv("PATH"),sep=";"))