Model specification help
I am experimenting with a version of lmer2 that should not use more memory after the initial setup. This version requires a recent development version of R-2.5.0. I'll check the sources for the package into the SVN archive. https://svn.r-project.org/R-packages/trunk/lme4 The SVN archive for the development version of R is https://svn.r-project.org/R/trunk Please be warned that I may need to make an adjustment in the way that lme4 gets its header files. If so I will announce on this list that you need to update both lme4 and R-devel.
On 3/12/07, Andrew Perrin <clists at perrin.socsci.unc.edu> wrote:
Sadly, the parsimonious model seems to have overwhelmed memory, both using lmer and lmer2:
grades.lmer<-lmer(grade.pt ~ (1|stud.id) + (1|instr.id) + (1|cour.dep),
+ newgrades.stripped.df, + control = + list(gradient = FALSE, niterEM = 0, msVerbose = 1) + ) 0 3.66128e+06: 0.0865649 0.0125233 0.000161387 1 3.57932e+06: 0.110177 0.0457235 0.999331 2 3.44933e+06: 0.603073 0.129709 0.999302 3 3.44882e+06: 0.604352 0.206648 0.997351 4 3.44777e+06: 0.681062 0.200279 0.997066 5 3.44748e+06: 0.736691 0.200143 0.989167 6 3.44746e+06: 0.744199 0.198462 0.988935 7 3.44744e+06: 0.759364 0.195889 0.988278 8 3.44744e+06: 0.762290 0.196680 0.987739 9 3.44744e+06: 0.764978 0.196422 0.986260 10 3.44744e+06: 0.764321 0.197399 0.983415 11 3.44744e+06: 0.763853 0.196192 0.980621 12 3.44744e+06: 0.758416 0.196809 0.946310 13 3.44744e+06: 0.758501 0.196269 0.911570 14 3.44739e+06: 0.756907 0.193748 0.355670 15 3.44738e+06: 0.761644 0.197153 0.320580 16 3.44738e+06: 0.762348 0.195416 0.202269 17 3.44738e+06: 0.765301 0.195340 0.219071 18 3.44738e+06: 0.762698 0.197282 0.235819 19 3.44738e+06: 0.764292 0.196909 0.226505 20 3.44738e+06: 0.764221 0.196833 0.226059 Error: cannot allocate vector of size 505003 Kb
grades.lmer2<-lmer2(grade.pt ~ (1|stud.id) + (1|instr.id) +
(1|cour.dep), + newgrades.stripped.df, + control = + list(gradient = FALSE, niterEM = 0, msVerbose = 1)) 0 3.66128e+06: 0.294219 0.111907 0.0127038 1 3.44990e+06: 0.759028 0.360622 0.862465 2 3.44785e+06: 0.933722 0.418394 0.797191 3 3.44743e+06: 0.872076 0.462189 0.792549 4 3.44742e+06: 0.876257 0.448197 0.791479 5 3.44741e+06: 0.873351 0.445076 0.790576 6 3.44741e+06: 0.874786 0.443924 0.789611 7 3.44741e+06: 0.873415 0.443482 0.788113 8 3.44741e+06: 0.874736 0.443449 0.786510 9 3.44741e+06: 0.873514 0.443352 0.782539 10 3.44740e+06: 0.874955 0.434554 0.666426 11 3.44738e+06: 0.874233 0.446203 0.550557 12 3.44738e+06: 0.876339 0.439541 0.434311 13 3.44738e+06: 0.872474 0.444317 0.481580 14 3.44738e+06: 0.875574 0.444679 0.485606 15 3.44738e+06: 0.874206 0.444010 0.483564 16 3.44738e+06: 0.874194 0.443919 0.478097 17 3.44738e+06: 0.874232 0.443418 0.475652 18 3.44738e+06: 0.874182 0.443707 0.474796 19 3.44738e+06: 0.874195 0.443675 0.475530 20 3.44738e+06: 0.874195 0.443669 0.475407 Error: cannot allocate vector of size 538066 Kb I'm going to try to start the same job on the solaris machine, but expect to have some problems because I don't have root access there. Will let you know how it goes. Thanks, Andy ---------------------------------------------------------------------- Andrew J Perrin - andrew_perrin (at) unc.edu - http://perrin.socsci.unc.edu Assistant Professor of Sociology; Book Review Editor, _Social Forces_ University of North Carolina - CB#3210, Chapel Hill, NC 27599-3210 USA New Book: http://www.press.uchicago.edu/cgi-bin/hfs.cgi/00/178592.ctl