Michael Friendly <[EMAIL PROTECTED]> writes: > I'm sure this is probably simple, but I can't find an answer... > I have a data frame (Galton's data on heights of parents and > children), in grouped form, > > > parent child frequency > 73.5 72.2 1 > 73.5 73.2 3 > 72.5 68.2 1 > 72.5 69.2 2 > 72.5 70.2 1 > 72.5 71.2 2 > 72.5 72.2 7 > 72.5 73.2 2 > 72.5 74.2 4 > 71.5 65.2 1 > 71.5 66.2 3 > 71.5 67.2 4 > 71.5 68.2 3 > 71.5 69.2 5 > 71.5 70.2 10 > ... > > and need the ungrouped equivalent, where each input observation > appears the number of times represented by its frequency.
If df is the name of the data frame you want df[rep(1:nrow(df), df$frequency), 1:2] ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
