convert date/time to numeric
On Wed, 21 Mar 2001, Yu-Ling Wu wrote:
I convert a numeric value to date/time format and do some operations on it. How to convert it back to a numeric value?
That's not numeric, that is character when you convert it. Use the help system to find how: it's on the same help page as strptime!
begin <- 200103131030 EndTime <- strptime(paste(begin), format="%Y%m%d%H%M") + 60 end <- ???? (I want end=200103131031 instead of "2001-03-13 10:31:00")
Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._