Re: [R] using difftime()

First thing to notice in your second example is that you have "factor" for what you think are strings. You should try: u2<-as.difftime(c(as.character(a),as.character(b)), format ="%Y-%m-%d %H:%M:%S", units="mins") and see if this gives you what you are expecting. If you are reading this in with

[R] using difftime()

I'm new to R and have the following problem with difftime: if I directly assign date/time strings in difftime I get the expected result: > a<-"2010-03-23 10:52:00" > a [1] "2010-03-23 10:52:00" > b<-"2010-03-23 11:53:00" > u2<-as.difftime(c(a,b), format ="%Y-%m-%d %H:%M:%S", units="mins") > u2 T