I have a data frame with integers mixed with a lot of NULLs, how do I convert
that to multiple lists of integers with zero (to replace NULL)? I tried the
following, and they failed:
> dim(g2)
[1] 25352 173
> class(g2)
[1] "data.frame"
> class(g2[1,])
[1] "data.frame"
> g2[1,30:40]
30 31 32 33 34 35 36 37 38 39 40
NM_000014 1 14 1 NULL 27 8 21 NULL NULL NULL NULL
> g3<-as.integer(g2[1,30:40])
> g3
[1] NA NA NA NA NA NA NA NA NA NA NA
>
thanks a lot!
-Kenny
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