HI, Try this: dat1<-"01/04/2006 1:10:60 PM" dat1<-as.character(dat1) strptime(dat1,"%m/%d/%Y %I:%M:%S %p")$yday+1 #[1] 4 A.K.
----- Original Message ----- From: Veerappa Chetty <chett...@gmail.com> To: r-help@r-project.org Cc: Sent: Friday, August 24, 2012 11:30 PM Subject: [R] date Hi, I have dates as follows: 1/4/2006 0:00:00 AM It is a factor at present. How do I find out the day of the week from this? How do I convert to Julian date format? Thanks. Chetty -- Professor of Family Medicine Boston University Tel: 617-414-6221, Fax:617-414-3345 emails: chett...@gmail.com,vche...@bu.edu [[alternative HTML version deleted]] ______________________________________________ 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. ______________________________________________ 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.
