[R] Can't resolve dependency problems with package "sem"

Fox, John jfox at mcmaster.ca
Thu May 5 02:35:20 CEST 2016

Dear Andreas,

As has been suggested, you're probably better off using an up-to-date version of R and corresponding up-to-date packages, but if the only issue is that sem can't be installed, the Rcmdr package should still work. The menu item for confirmatory factor analysis will be missing, and unless you tell it to suppress checking for missing packages on start-up, the Rcmdr will continue to ask you whether you want to install the sem package, but everything else should work.

To suppress the start-up package check, issue the R command options(Rcmdr=list(check.packages=FALSE)) before library(Rcmdr).

I hope this helps,

John Fox, Professor
McMaster University
Hamilton, Ontario, Canada

> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of C&A
> Säger
> Sent: Wednesday, May 4, 2016 8:28 PM
> To: Jim Lemon; r-help at r-project.org
> Subject: Re: [R] Can't resolve dependency problems with package "sem"
> Am 05.05.2016 um 00:17 schrieb Jim Lemon:
> > Hi Andreas,
> > Try installing plyr, arm, scales and mi separately. If you get an
> > error message about a version mismatch, that's where your problem is.
> > _Sometimes_ upgrading R will fix it, if the problem is that the
> > version you are downloading is too new for your R version.
> >
> > Jim
> >
> Hello Jim,
> Indeed, this might be the problem. When I try to install plyr, I get
> something like this:
> "Package xxx is not availlable (not for this version 3.0.x)"
> I was hoping that any old version from the Ubuntu repositories would be
> good enough for an absolute beginner.
> Thank you very much,
> Andreas
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