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.

Steve
____________________________________
Steven P. Brady, M.E.Sc (2007)
School of Forestry & Environmental Studies
Yale University
http://www.cbc.yale.edu/people/skelly/steveb.html




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