[R-sig-ME] lme error message

Stuart Luppescu slu at ccsr.uchicago.edu
Tue Jul 21 23:54:19 CEST 2009

Running a nested model with lme, and getting this message:

Error in MEEM(object, conLin, control$niterEM) : 
  Singularity in backsolve at level 0, block 1

Can anyone explain this?

Stuart Luppescu -=- slu .at. ccsr.uchicago.edu        
University of Chicago -=- CCSR 
才文と智奈美の父 -=-    Kernel 2.6.28-gentoo-r5                
Xander: What's going on here? People are going all 
 Felicity with  their hair.  

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