michael.cole@unisg.ch wrote:
Full_Name: michael cole Version: 1.9.1 OS: Windows Submission from: (NULL) (80.219.153.13) When trying to install lattice graphics... I receieve the following: trying URL `http://cran.r-project.org/bin/windows/contrib/1.9/lattice_0.9-16.zip' Content type `application/zip' length 496618 bytes opened URL downloaded 484Kb package 'lattice' successfully unpacked and MD5 sums checked Error in unpackPkg(foundpkgs[okp, 2], pkgnames[okp], lib, installWithVers) : Can not remove prior installation of package
That's not bug in R! Please send questions to r-help rather than r-bugs. Either you have no write access to the library install.packages() tries to install the package in, or you have loaded lattice before and Windows has locked some files (probably the any dll or help file). If the former, try to install into a different library you have got write access to. If the latter, restart R without loading the library and try again. Uwe Ligges