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 -- View this message in context: http://n4.nabble.com/convert-a-data-frame-with-NULL-to-a-list-of-integer-tp1445595p1445595.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.