Hello! I am running analysis on the data from 4 experiments, with approximately 4600 rows (cases). My working model is: fitA1 = lme(RT~F1+F2+L,random=~1|Experiment/Subject,data=data)
Model works very fine, but if I try to check whether the effect of L depends on Experiments/Subjects with: fitA2 = lme(RT~F1+F2+L,random=~1+L|Experiment/Subject,data=data) [with the idea to make: anova(fitA1,fitA2)] > analysis crashes with the message: > Error: cannot allocate vector of size 2481574 Kb > In addition: Warning message: > Fewer observations than random effects in all level 2 groups in: > lme.formula(RT ~ F1 + F2 + L, random = ~1 + L | Experiment/Subject, Can anyone help me with this issue? Thanks in advance. Sincerely, Petar Milin Assistant Professor Department of Psychology University of Novi Sad Serbia and Montenegro ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
