So, I decided to give it a try (and just now noticed that this is the example in lmer2)
I just gave it a try on a PPC G4 and it worked as expected. I'm copying R-sig-mac (sorry for the crosspost) as the experts there might give you a better suggestion. > fm1 <- lmer2(Reaction ~ Days + (Days|Subject), sleepstudy) > fm1 Linear mixed-effects model fit by REML Formula: Reaction ~ Days + (Days | Subject) Data: sleepstudy AIC BIC logLik MLdeviance REMLdeviance 1754 1770 -871.8 1752 1744 Random effects: Groups Name Variance Std.Dev. Corr Subject (Intercept) 612.128 24.7412 Days 35.049 5.9202 0.066 Residual 654.970 25.5924 Number of obs: 180, groups: Subject, 18 Fixed effects: Estimate Std. Error t value (Intercept) 251.405 6.825 36.84 Days 10.467 1.545 6.77 Correlation of Fixed Effects: (Intr) Days -0.137 > sessionInfo() R version 2.5.0 Under development (unstable) (2007-01-03 r40349) powerpc-apple-darwin8.8.0 locale: C attached base packages: [1] "stats" "graphics" "grDevices" "utils" "datasets" "methods" [7] "base" other attached packages: lme4 Matrix lattice "0.9975-11" "0.9975-8" "0.14-16" On Jan 29, 2007, at 7:40 AM, Michael Kubovy wrote: > On Jan 28, 2007, at 9:39 PM, Benilton Carvalho wrote: > >> This seems to be due to the fact that you didn't have enough >> memory when running lmer2. >> >> I might be wrong, but I think Calloc tries to get contiguous >> memory, so this might the problem. >> >> If you are positive that you have enough memory, a gc() might help. > > I have 2 GB memory on this machine. Should be enough, no? > > > gc() > used (Mb) gc trigger (Mb) max used (Mb) > Ncells 1008175 27.0 1476915 39.5 1368491 36.6 > Vcells 540055 4.2 1031040 7.9 1031026 7.9 > > (fm1 <- lmer2(Reaction ~ Days + (Days|Subject), sleepstudy)) > Error in as.double(start) : Calloc could not allocate (903190944 of > 4) memory > > >> On Jan 28, 2007, at 8:35 PM, Michael Kubovy wrote: >> >>>> (fm1 <- lmer2(Reaction ~ Days + (Days|Subject), sleepstudy)) >>> Error in as.double(start) : Calloc could not allocate (888475968 of >>> 4) memory >>> ************************* >>>> sessionInfo() >>> R version 2.4.1 (2006-12-18) >>> powerpc-apple-darwin8.8.0 >>> >>> locale: >>> C >>> >>> attached base packages: >>> [1] "grid" "datasets" "stats" "graphics" "grDevices" >>> "utils" "methods" >>> [8] "base" >>> >>> other attached packages: >>> lme4 Matrix xtable latticeExtra lattice >>> gridBase MASS >>> "0.9975-11" "0.9975-8" "1.4-3" "0.1-4" "0.14-16" >>> "0.4-3" "7.2-31" >>> JGR iplots JavaGD rJava >>> "1.4-15" "1.0-5" "0.3-5" "0.4-13" >>> ************************* >>> lmer runs the example w/o a problem >>> >>> I just tried to run it on on Intel-based MacPro, and lmer2 ran >>> without a hitch. > _____________________________ > Professor Michael Kubovy > University of Virginia > Department of Psychology > USPS: P.O.Box 400400 Charlottesville, VA 22904-4400 > Parcels: Room 102 Gilmer Hall > McCormick Road Charlottesville, VA 22903 > Office: B011 +1-434-982-4729 > Lab: B019 +1-434-982-4751 > Fax: +1-434-982-4766 > WWW: http://www.people.virginia.edu/~mk9y/ > ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.