Re: [R] Row and Column positions

Try: which(is.na(m), arr = T) On Fri, Oct 31, 2008 at 9:17 AM, Shubha Vishwanath Karanth < [EMAIL PROTECTED]> wrote: > Hi R, > > > > m=data.frame(a=c(1,NA,5,5),b=c(4,5,6,7),c=c(NA,NA,NA,5)) > > > > I want to know the methods of getting row and column positions of NA in > the above dataframe. How

Re: [R] Row and Column positions

Am Freitag 31 Oktober 2008 12:17:30 schrieb Shubha Vishwanath Karanth: > m=data.frame(a=c(1,NA,5,5),b=c(4,5,6,7),c=c(NA,NA,NA,5)) ? which HTH Claudia -- Claudia Beleites Dipartimento dei Materiali e delle Risorse Naturali Università degli Studi di Trieste Via Alfonso Valerio 6/a I-34127 Trieste