Hi all, The recent change in 2.11 that made as.numeric() return false on difftime-objects broke some of my code that calculated age classes of individuals using cut(). While this was no big thing to fix for me, it might be wise to provide a cut.difftime method to ?stop other old code from breaking. I'm guessing something as simple as cut.difftime<-function(x,...){ x<-as.numeric(x) cut(x,...) } would suffice. best regards, Gustaf -- Gustaf Rydevik, M.Sci. tel: +46(0)703 051 451 address:Essingetorget 40,112 66 Stockholm, SE skype:gustaf_rydevik