[R] Could not find lmer function in {Matrix} package

From: Steve Brady <steven.brady_at_yale.edu>
Date: Tue, 19 Jun 2007 11:59:15 -0400

I am having trouble calling the lmer function in the {Matrix} package. I first installed and loaded {Matrix} as follows:

> install.packages("Matrix")
> library(Matrix)

The package loaded successfully, however when I attempted to call lmer, I received the following message:

Error: could not find function "lmer"

I also tried:

< ?lmer

which produced no search results.

I have attempted these actions in both MacOSx R Versions 2.4.1 and 2.5.0. I have also tried this in Version 2.5.1. beta on a Windows machine.

Thanks in advance for any suggestions.


Steven P. Brady, M.E.Sc (2007)
School of Forestry & Environmental Studies Yale University

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