Running R 2.13.1 on Windows XP. I would like to get week of the year (1-52) for each date.
library(chron) dts <- dates(c("02/27/92", "02/27/92", "01/14/92","02/28/92", "02/01/92")) dts dts.chron <- as.chron(dts) dts.chron class(dts.chron) # all of these component extractions work: months(dts.chron) weekdays(dts.chron) years(dts.chron) quarters(dts.chron) # but weeks() doesn't seem to work weeks(dts.chron) ?chron tells me: . . . The functions days(), months(), quarters(), years(), weeks(), weekdays(), hours(), minutes(), and seconds() take any chron object as input and extract the corresponding time interval . . . . Any advice? Thanks. Chris Ryan SUNY Upstate Medical University Clinical Campus at Binghamton Binghamton, NY ______________________________________________ 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.