[R] corrgram (package corrgram): how to plot multiple correlograms in the same page?

know a workaround for this? Many thanks in advance for any advice best giuseppe -- Giuseppe Pagnoni, PhD Dip. Scienze Biomediche, Metaboliche e Neuroscienze Sezione Fisiologia e Neuroscienze Univ. di Modena e Reggio Emilia Via Campi 287 I-41125 Modena, Italy Tel: +39-059-205-5742 Fax: +39-059-205

[R] Function nlme::lme in Ubuntu (but not Win or OS X): "Non-positive definite approximate variance-covariance"

s in advance for any suggestions, best giuseppe -- Giuseppe Pagnoni Dip. Scienze Biomediche, Metaboliche e Neuroscienze Sezione Fisiologia e Neuroscienze Univ. di Modena e Reggio Emilia Via Campi 287 I-41125 Modena, Italy Tel: +39-059-205-5742 Fax: +39-059-205-5363

[R] Repeated-measures anova with a within-subject covariate (or varying slopes random-effects?)

or(subj /(run + stim * cond)), data=rt.df) Perhaps should lme() be used instead (and with which formula?)? Many thanks in advance to anybody who'd be so kind to offer their advice or tip on this. I have scoured the web and some textbooks for a few days now, but to little avail. very best