Hi, I have a dataset including monthly date from 1971-01-01 to 2009-01-01. The dates are character variables.
I want to select the subsample from my original data, so I use mydata3<-window(mydata,start="1972-02-01",end="2005-02-01"), or mydata3<-window(mydata, start=as.date("1972-02-01"),end=as.date("2005-02-01")) or mydata3<-window(mydata, start=c(1972-02-01),end=c(2005-02-01)) but I constantly receive Error in attr(x, "tsp") <- c(1, NROW(x), 1) : invalid time series parameters specified I don't know how to fix it in this case. Many thanks YD [[alternative HTML version deleted]] ______________________________________________ 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.