This *is* a bug in package Matrix and yes, bugs in packages can be bad enough to stop a saved image (sic) being loaded. You could have started R --no-restore and load()ed it later.
Matrix has several uses of assignInNamespace in .onLoad and .onUnload, and that is in package utils and so not necessarily loaded. Try loading Matrix with R_DEFAULT_PACKAGES=NULL to reproduce this. R-bugs was not the appropriate place to report this, as the FAQ makes quite clear. On Thu, 29 Dec 2005 [EMAIL PROTECTED] wrote: > On starting an R session, I get the messages: > > Fatal errir: unable to restore save data in .RData > > Error in fun(...): couldn't find function "assignInNamespace" > > Error: .onLoad failed in 'loadNamespace' for 'Matrix' > > The only object in my .RData is last.warning, thus: > > > last.warning > $"optim or nlminb returned message false convergence (8)" > "LMEoptimize<-"(`*tmp*`, value = list(maxIter = 200, tolerance = > 1.49011611938477e-08, > msMaxIter = 200, msVerbose = 0, niterEM = 15, EMverbose = FALSE, > PQLmaxIt = 30, analyticGradient = TRUE, analyticHessian = FALSE)) > > This was generated by a call, in a previous session,to lmer() > There may be a problem with the package Matrix, but it seems a bit > extreme that this prevents restoration of the session. > > John Maindonald > [EMAIL PROTECTED] > > --please do not edit the information below-- > > Version: > platform = i386-pc-mingw32 > arch = i386 > os = mingw32 > system = i386, mingw32 > status = > major = 2 > minor = 2.1 > year = 2005 > month = 12 > day = 20 > svn rev = 36812 > language = R > > Windows XP Home Edition (build 2600) Service Pack 2.0 > > Locale: > LC_COLLATE=English_Australia.1252;LC_CTYPE=English_Australia.1252;LC_MONETARY=English_Australia.1252;LC_NUMERIC=C;LC_TIME=English_Australia.1252 > > Search Path: > .GlobalEnv, package:methods, package:stats, package:graphics, > package:grDevices, package:utils, package:datasets, Autoloads, package:base > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > > -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel