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2002 Jun 20
4
how to skip NA columns ?
R-helpers!
na.omit() can be used to remove rows with NA's
but how can I remove columns ? and remember, which columns have been removed
?
I guess I can do t(na.omit(t(o))) as shown below, but this probably creates
a lot of overhead and I do not know which columns
have been removed.
Yours,
R
> o
[,1] [,2] [,3]
[1,] 1 NA 7
[2,] 2 NA 8
[3,] 3 NA 9
>