Hello all, I did not attach data as this is probably simple answer that I cannot find.
I am collecting daily data and would like to plot the data by week but now that we are into the new year, my plots started over with 01 after the last week of the year. How can I continuously keep adding weeks such as 53, 54, 55, 56, etc. instead of starting over? Below has worked for me until we moved into 2019. data$Date <- as.Date(data$TIMESTAMP,format="%m/%d/%y %H:%M") data$Week1 <- strftime(data$Date,format = "%V") data$Week<-as.factor(data$Week1) Keith M. Keith Cox, Ph.D. Principal MKConsulting 17415 Christine Ave. Juneau, AK 99801 U.S. 907.957.4606 [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.