search for: someag

Displaying 1 result from an estimated 1 matches for "someag".

Did you mean: sometag
2013 May 03
10
Why can't R understand if(num!=NA)?
I have a program, when I write if(num!=NA) it yields an error message. However, if I write if(is.na(num)==FALSE) it works. Why doesn't the first statement work? Thanks, Miao [[alternative HTML version deleted]]