[R] summary of problem with mCall function.

Bill Shipley
Wed, 07 Sep 2005 17:38:08 -0000

Last week I posted a question concerning the mCall function, which is
used to create self-starting functions and is described in the book by
Pinheiro, J.C. and Bates, D.M. (Mixed-effects models in S and S-PLUS).
On page 345 one finds the following call:



xy<-sortedXyData(mCall[["x"]], LHS,data)



It is necessary to replace the "x" in the call to mCall by the actual
variable name for the dependent variable.  The error message that I was
getting was due to the fact that I had called by dependent variable in
the data frame (data) by another name than x without changing this in
the call to mCall.





Bill Shipley




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