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var5
2006 Apr 26
2
Memory usage and limit
...ables in each row. All but 2
of the variables are of the character type and the other two are numeric.
The whole data set is about 600 MB when stored as plain ASCII file.
The following code was used in the benchmarking runs:
c = list(var1=0, var2=0, var3="", var4="", .....var65="")
A <- scan("test.dat", skip = 1, sep = ",", what = c, nmax=XXXXX,
quiet=FALSE)
summary(A)
where XXXX = 1000000 or 2000000
I made two runs with nmax=1000000 and nmax=2000000 respectively. The first
run completed successfully, in about hour of CPU time....