Has one try to install the ggplot2 package recently? I tried to install it on my new system and had trouble:
I tried a different CRAN mirror but didn't work library(ggplot2) Error in loadNamespace(i, c(lib.loc, .libPaths())) : there is no package called ‘stringr’ In addition: Warning message: package ‘ggplot2’ was built under R version 2.15.2 Error: package/namespace load failed for ‘ggplot2’ -- View this message in context: http://r.789695.n4.nabble.com/install-the-ggplot2-package-tp4650935.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.