[R] R "write" strange behavior in huge file

[Maxime Vallee]

Hello, 

In my script I have one list of 1,132,533 vectors (each vector contains
381 elements). 

When I use "write" to save this list in a flat text file (I unlist my
list, separate by tabs, and set ncol to 381), I end up with a file of
1,132,535 lines (2 additional lines). I checked back, my R list do not
have those two additional items before writing.

With awk, I determined if lines where not made of 381 fields: there were
two, separated by around 400k lines.

I made sub-files, using those "incomplete" lines as boundaries. My files
are very close in size : 1.9 GB (respectively 1971841853 B and 1972614897
B). It feels like a 32 bit / 64 bit issue.

My R version is this:
./Rscript -e 'sessionInfo()$platform'
[1] "x86_64-unknown-linux-gnu (64-bit)"

There is somewhere, reaching 1.9 GB, something that is changing my tabs to
unwanted carriage returns...
Any idea that might cause this, and if it looks solvable in R?

Cheers, 

--Maxime 





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