[BioC] covariance structures for limma

[Jacob Michaelson]

Hi All,

With a *quick* search in the mailing list and through the limma PDF I 
couldn't find any information on how to provide for a covariance 
structure in limma (this is for a repeated measures experiment).  I 
know lme has "weights" and "correlation" arguments which should do the 
job...can anyone enlighten me on limma's way of specifying covariance 
structures?

Thanks in advance,

Jake Michaelson