Thanks Prof, As you can see from my session information (below), I appear to be using the same version of Matrix as yourself. However, I also notice that you're using a patched version of 2.8.1 whereas I'm not. Could this be the difference?
sessionInfo() R version 2.8.1 (2008-12-22) i386-pc-mingw32 locale: LC_COLLATE=English_United Kingdom.1252;LC_CTYPE=English_United Kingdom.1252;LC_MONETARY=English_United Kingdom.1252;LC_NUMERIC=C;LC_TIME=English_United Kingdom.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] Matrix_0.999375-20 lattice_0.17-20 loaded via a namespace (and not attached): [1] grid_2.8.1 tools_2.8.1 Megan Megan Davies Policy and Advice Officer, Statistician Scottish Natural Heritage 01463 725072 >>> Prof Brian Ripley <rip...@stats.ox.ac.uk> 04-02-2009 11:13 >>> Did you update your version of Matrix? It should be 0.99375-20 (or perhaps -18). E.g. for me > sessionInfo() R version 2.8.1 Patched (2009-02-04 r47838) i386-pc-mingw32 locale: LC_COLLATE=English_United Kingdom.1252;LC_CTYPE=English_United Kingdom.1252;LC_MONETARY=English_United Kingdom.1252;LC_NUMERIC=C;LC_TIME=English_United Kingdom.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base other attached packages: [1] lme4_0.999375-28 Matrix_0.999375-20 lattice_0.17-20 loaded via a namespace (and not attached): [1] grid_2.8.1 tools_2.8.1 worked. R 2.9.0 will check versions when loading a package, but 2.8.1 does not. On Wed, 4 Feb 2009, Megan Davies wrote: > Hello UseRs, > > I've just tried to load the lme4 package and got the error message, > "function 'cholmod_l_start' not provided by package 'Matrix'". I > downloaded the latest version of lme4 and its required packages > (lattice and Matrix) as suggested in the archives and still got this > message. The FAQ and archives suggested to check the R version and also the package version requirements. > requirements, but I'm already using the latest available version of > R, 2.8.1. I'm using Windows XP Professional. > > Thanks for any help, > Megan Davies > > Megan Davies > Policy and Advice Officer, Statistician > Scottish Natural Heritage > 01463 725072 -- Brian D. Ripley, rip...@stats.ox.ac.uk 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 ********************************************************************** Is this email SPAM? If so, please forward it as an attachment to s...@snh.gov.uk ********************************************************************** This email and any files transmitted with it are confid...{{dropped:12}} ______________________________________________ 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.