Hallo together, i have a data.frame like this one. A 1 3 2 -2 3 1 and now i want to convert the negative number to 0. A 1 3 2 0 3 1 How can i do this? Thanks. Mat -- View this message in context: http://r.789695.n4.nabble.com/Convert-negativ-number-to-0-tp4653529.html Sent from the R help mailing list archive at Nabble.com.