Hello, Try apply(df, 2, min) (By the way, 'df' is the name of a R function, avoid it, 'DF' is better.) Hope this helps, Rui Barradas -- View this message in context: http://r.789695.n4.nabble.com/how-to-compute-a-vector-of-min-values-tp4536224p4536275.html Sent from the R help mailing list archive at Nabble.com.