Hi, I work on the date format: yyyymmdd. I would like to calculate the number of (working or trading) days between two of such specified dates in specific year at US stock exchange OR at least with respect to 252-days year.
What I did so far was the conversion (example): x<-20060213; y<-20060402 # refering to January 13 and April 2, 2006 x1 <- as.Date(as.character(x), "%Y%m%d") y1 <- as.Date(as.character(y), "%Y%m%d") # nuber of calendar days nr_cal<-diff(rbind(x1,y1)) best regards, robert -- View this message in context: http://www.nabble.com/number-of-trading-days-tp17364148p17364148.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.