Under Details, the documentation says "[if Rowv or Colv] is 'NULL',
_no reordering_ will be done for the corresponding side." In fact, as
explained elsewhere in the documentation, 'NA' is required, not
'NULL'.
An anonymous expert suggested that I should attach an svn diff file to
this report, so
I think this issue will be of interest to the list. It seems like a
problem with nlme, and I was drawn into it because of a collaborator
who encountered this issue in a simple experiment and wound up
questioning the mixed model approach to his question.
The issue is that lme, when faced with certa
