[R-sig-ME] Model specification help

[Andrew Perrin]

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