Re: [R] calculations with dates

2010-08-29 Thread jim holtman
Try this: > x startdate enddate 1 27SEP2005 01JAN2006 > x$start <- as.Date(x$startdate, format="%d%b%Y") > x$end <- as.Date(x$enddate, format="%d%b%Y") > x startdate enddate startend 1 27SEP2005 01JAN2006 2005-09-27 2006-01-01 > x$duration <- x$end - x$start > x startdate

[R] calculations with dates

2010-08-29 Thread André de Boer
Hi, I have a data.frame with factors in columns like startdate enddate 27SEP2005 01JAN2006 How can I calculate the duration between those two dates and move this in a extra column in the data.frame. Thanks, André [[alternative HTML version deleted]] __