[R] Is my data set too large
Aimin Yan
aiminy at iastate.edu
Tue Dec 12 17:13:19 CET 2006
I have a data set like this.
I want to do glm, but I get this error:
Error in model.matrix.default(mt, mf, contrasts) :
cannot allocate vector of length 932889958
I am wondering if my data set is too large or I did something wrong.
Is there some limitation for data size for R?
thanks,
Aimin
> p1982<- read.csv("p_1982_aa.csv")
> names(p1982)
[1] "p" "aa" "as" "ms" "cur" "sc"
> str(p1982)
'data.frame': 465979 obs. of 6 variables:
$ p : Factor w/ 1982 levels "154l_aa","1A0P_aa",..: 1 1 1 1 1 1 1 1 1 1 ...
$ aa : Factor w/ 19 levels "ALA","ARG","ASN",..: 2 16 4 5 18 3 19 3 2 9 ...
$ as : num 152.0 15.9 65.1 57.2 28.9 ...
$ ms : num 108.8 28.3 59.2 49.9 31.8 ...
$ cur: num -0.1020 0.2564 0.0312 -0.0550 0.0526 ...
$ sc : num 92.10 103.67 7.27 72.98 96.12 ...
> attach(p1982)
> m<-glm(sc~p+aa+as+cur,data=p1982)
Error in model.matrix.default(mt, mf, contrasts) :
cannot allocate vector of length 932889958
>
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