On Jul 5, 2010, at 11:49 AM, Irina wrote:
Hello,
I am trying to save a large matrix of values in a file. My problem
is that I am
writing
write.table(allpos,'control_chr1.txt', dec=".")
and then I want to check it with
test2=read.table('control_chr1.txt')
sum(test2[,2]==allpos[,2])
This last number is lower than the length of the test2[,2] vector.
This is
really annoying me because I can't figure out why I don't get out
the same thing
that I put in.
Many potential problems could underly getting FALSE for an "==" test.
One might be FAQ 7.31. Another might be encoding or locale issues
related to the decimal separator. Why not post a reproducible example?
--
David Winsemius, MD
West Hartford, CT
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