I'm not sure - what is the question here? It works for me on a both PowerPC G5 and Mac Pro (R 2.4.1 CRAN binary):
> fm1 <- lmer(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) 610.835 24.7151 Days 35.056 5.9208 0.067 Residual 655.066 25.5943 number of obs: 180, groups: Subject, 18 Fixed effects: Estimate Std. Error t value (Intercept) 251.405 6.820 36.86 Days 10.467 1.546 6.77 Correlation of Fixed Effects: (Intr) Days -0.137 > gc() used (Mb) gc trigger (Mb) max used (Mb) Ncells 966960 25.9 1368491 36.6 1265230 33.8 Vcells 523595 4.0 1031040 7.9 755843 5.8 > sessionInfo() R version 2.4.1 (2006-12-18) i386-apple-darwin8.8.1 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" Cheers, Simon On Jan 29, 2007, at 10:40 AM, Benilton Carvalho wrote: > 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-SIG-Mac mailing list > R-SIG-Mac@stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/r-sig-mac > > ______________________________________________ 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.