On May 12, 2010, at 2:06 PM, Clark Johnston wrote: > > I was looking for a function which would take the difference along a vector? >> a<-c(1,12,23,44,15,28,7,8,9,10) > if I set the number difference to 3 would return > 43 > 2 > 5 > -37 > -7 > -19 > 3 > > or do I need to write my own function for this.
?diff > diff(a, lag = 3) [1] 43 3 5 -37 -7 -19 3 HTH, Marc Schwartz ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
