#add column Start Hello Good Afternoon I am trying to create a new column in the data frame, the target is based on a column of dates to extract a value of life and add a new column to data frame
f<-x.res$T-x.res$duration Dataset$StarEvent<-(as.character.POSIXt(f)) x.sub$T is: [1] "2006-10-31 20:10:35 EST" "2006-10-31 20:11:08 EST" "2006-10-31 20:11:21 EST" [4] "2006-10-31 20:12:16 EST" "2006-10-31 20:13:20 EST" "2006-10-31 20:13:28 EST" x$duration 159 234 345 35 544 Error in `$<-.data.frame`(`*tmp*`, "StarEvent", value = c("2006-10-31 20:08:03", : replacement has 18 rows, data has 103) -- View this message in context: http://r.789695.n4.nabble.com/extract-values-for-the-dates-and-a-new-column-tp4472052p4472052.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.