Henrique Dallazuanna schrieb: > Try this also: > > pmax(test - 1, 1) > > O test <- c(1,3,5,7,9,11,12,13,14) test test <- pmax(test - 1, 1) test This works for 1 what about if I would dec 11: to 14 to close the gap between 9 and 10 ? I did not find the answer with the help file Thank you Knut