[R] reading a big file

Remigijus Lapinskas remigijus.lapinskas at mif.vu.lt
Wed May 23 19:38:33 CEST 2007


Dear All,

I am on WindowsXP with 512 MB of RAM, R 2.4.0, and I want to read in a
big file mln100.txt. The file is 390MB big, it contains a column of 100 
millions integers.

> mln100=scan("mln100.txt")
Error: cannot allocate vector of size 512000 Kb
In addition: Warning messages:
1: Reached total allocation of 511Mb: see help(memory.size)
2: Reached total allocation of 511Mb: see help(memory.size)

In fact, I would be quite happy if I could read, say, every tenth 
integer (line) of the file. Is it possible to do this?

Cheers,
Rem



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