Hi, On Thursday 29 November 2012, Rudolf Reinelt wrote: > > library(ggplot2) > > Error in loadNamespace(i[[1L]], c(lib.loc, .libPaths())) : > there is no package called 'MASS'
this means you don't have the package "MASS", which is required by ggplot2. I don't know, why you lack this package, as in general dependencies get installed, automatically. You should try re-installing ggplot2 (either using the install.packages() command, or in RKWard using Settings->Manage R packages...->Install / Update / Remove). While at it, it may be a good idea to install any available updates to your packages, too. It may be worth pointing out, that in the current official version of RKWard (0.6.0), the RKWard plot history feature is a bit broken in combination with ggplot2. If that is an essential feature to you, consider using the development version (http://p.sf.net/rkward/svn). Regards Thomas P.S.: We have a dedicated list rkward-users for this sort of question. In fact, if you have no particular reason to believe that the problem is related to RKWard, rather than R, consider asking on r-help (at lists.r-project.org).
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