As Dieter points out, this is likely a mismatch between the versions of the lme4 and the Matrix packages, which are very closely linked together. It appears that the version of the lme4 package is too old for the version of the Matrix package, which is hard to catch in the dependencies (lme4 depends on Matrix but not the other way around). As Dieter suggests, it would be best to install the most recent version of R which can then pull in the most recent versions of the lme4 and Matrix packages.
On Sun, Jan 10, 2010 at 11:12 AM, Dieter Menne <dieter.me...@menne-biomed.de> wrote: > > > > Esmail Bonakdarian-4 wrote: >> >> >> Using Ubuntu 9.04 and R 2.8.1. >> >> For a project I need to use the Zelig package, which in turn wants to >> use the lme4 package. When trying to use Zelig and it tries to its >> required >> packages I get the following error message. >> >> Error in dyn.load(file, DLLpath = DLLpath, ...) : >> function 'cholmod_start' not provided by package 'Matrix' >> Error in loadModelDeps(model) : >> This model depends on package "lme4". Please install this package and >> try again >> >> > > Looks like a version mismatch. It's probably easiest if you update to R > 2.10.1 and try again; you will have to reinstall all your packages, because > of the change help format in 2.9.x > > Dieter > > > > -- > View this message in context: > http://n4.nabble.com/lme4-and-function-cholmod-start-not-provided-by-package-Matrix-Ubuntu-tp1010729p1010740.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. > ______________________________________________ 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.