Dear all,
I am trying to aggregate a table (divided in two lists here), but get a
memory error.
Here is the code I'm running :
sessionInfo()
print(paste("memory.limit() ", memory.limit()))
print(paste("memory.size() ", memory.size()))
print(paste("memory.size(TRUE) ", memory.size(TRUE)))
print(paste("size listX ", object.size(listX)))
print(paste("size listBy ", object.size(listBy)))
print(paste("length ", object.size(nrow(listX))))
tableAgg <- aggregate(x = listX
, by = listBy
, FUN = "max")
It returns :
R version 2.9.0 Patched (2009-05-09 r48513)
i386-pc-mingw32
locale:
LC_COLLATE=French_France.1252;LC_CTYPE=French_France.1252;LC_MONETARY=French_France.1252;LC_NUMERIC=C;LC_TIME=French_France.1252
attached base packages:
[1];stats;graphics;grDevices;utils;datasets;methods;base
other attached packages:
[1];RODBC_1.3-2;HarpTools_1.4;HarpReport_1.9
loaded via a namespace (and not attached):
[1];tools_2.9.0
[1];"memory.limit() 4095"
[1];"memory.size() 31.92"
[1];"memory.size(TRUE) 166.94"
[1];"size listX 218312"
[1];"size listBy 408552"
[1];"length 9083"
Erreur in vector("list", prod(extent)) :
cannot allocate vector of length 1224643220
(the last line is translated from the french error message "impossible
d'allouer un vecteur de longueur 1224643220" )
Why would R create such a long vector (my original lists , and is there a
way to avoid this error ?
Thank you for your help,
Guillaume
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