Michael has a PPC G5 with 2GB of RAM and can't get that example to run. It can't allocate enough memory (or at least it's what I understand from the error he reported).
Given that the example doesn't require much RAM (and I could get it to run on a G4, Mac OS X 10.4.8), I failed to have a plausible explanation for the problem. b On Jan 29, 2007, at 11:28 AM, Simon Urbanek wrote: > 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 >> [email protected] >> https://stat.ethz.ch/mailman/listinfo/r-sig-mac >> >> _______________________________________________ R-SIG-Mac mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-mac
