Hi, I've a data frame with 3 columns: "mes", "fuente", "avg.sessions.duration".
"avg.sessions.duration" is a column containing seconds. I need you help with: 1.- Help to put these values in "h:m:s" format. . ======================================================= I've found this german page: http://forum.r-statistik.de/viewtopic.php?f=25&t=5284 So I've tried: for (i in 1:nrow(session.duration.fuente)) { session.duration.fuente$avg.session.duration <- format(as.POSIXct('0001-01-01 00:00:00') + session.duration.fuente$avg.session.duration[i], "%H:%M:%S") } but got this error: Error in unclass(e1) + unclass(e2) : non-numeric argument to binary operator ======================================================= After that I've tried: strptime: session.duration.fuente$avg.session.duration <- strptime(session.duration.fuente$avg.session.duration, "%H:%M:%OS") But got NAs. ======================================================== Here is the data: session.duration.fuente <- structure(list(mes = structure(c(1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L), .Label = c("oct", "nov"), class = c("ordered", "factor" )), fuente = c("adwords", "directo", "organico", "redes sociales", "referral", "adwords", "directo", "organico", "redes sociales", "referral"), avg.session.duration = c(970178, 1642455, 780485, 3170400, 179184, 352995, 833827, 260610, 2318928, 49836)), row.names = c(NA, -10L), class = c("grouped_df", "tbl_df", "tbl", "data.frame"), vars = list( mes), drop = TRUE, .Names = c("mes", "fuente", "avg.session.duration" )) [[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.
