Re: [R] Find the empty element in a factor array

g > Subject: [R] Find the empty element in a factor array > > > Hi all, > > I have a factor array, and some of the elements are empty. How would I > return the index number of the empty elements. For example, > > test<-factor(c('A','','B

[R] Find the empty element in a factor array

Hi all, I have a factor array, and some of the elements are empty. How would I return the index number of the empty elements. For example, test<-factor(c('A','','B','C','E')) > test [1] A B C E Levels: A B C E I would like the result equal to 2. Thank you, Wendy -- View this message in con