I have a vector a = c(1,0,0,0,1,0,4,0,0,0) Now I want to get a vector of positions in a vector a where the value is non zero.. How to do it?? -- View this message in context: http://r.789695.n4.nabble.com/How-to-get-vector-of-poitions-in-a-vector-tp2299997p2299997.html Sent from the R help mailing list archive at Nabble.com.