Thank you for replying the as.Date error question. I have one more question as below. I used cbind command, and data x changed, 2010-11-16 to 14929, 2010-11-17 to 14930. What happened to them? What should I do to see yyyy-mm-dd format data?
> x=c("11/16/2010","11/17/2010","11/18/2010","11/19/2010") > x=as.Date(x,"%m/%d/%Y") > x [1] "2010-11-16" "2010-11-17" "2010-11-18" "2010-11-19" > y=c(1753.75,15077,1759.35,15078) > cbind(x,y) x y [1,] 14929 1753.75 [2,] 14930 15077.00 [3,] 14931 1759.35 [4,] 14932 15078.00 Thanks Wonjae -- View this message in context: http://r.789695.n4.nabble.com/as-Date-error-tp3456279p3456279.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.