Hi,
I have a sequence whose 1st, 3rd, 4th, 6th are non-NAs. How could I let R
return 1,3,4,6, the indices?
I know only how to find the non-NA elements. Thanks,
Miao
> test<-c(2,NA,6,8,NA,12)
> test[is.na(test)==FALSE]
[1] 2 6 8 12
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