Hello, Try 'as.vector' or 'as.numeric'
x <- as.ts(rnorm(20)) y <- as.ts(rnorm(20)) plot(x) plot(as.vector(lag(x,-9)),as.vector(y),type="p") # works plot(as.numeric(lag(x,-9)),as.numeric(y),type="p") # also works Rui Barradas -- View this message in context: http://r.789695.n4.nabble.com/problem-on-plotting-ts-data-tp4261865p4262106.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.