I M S White wrote: > Is there any way to get a numerical summary of the values of a difftime > object? E.g. > > TimeToWean <- difftime(WeanDate, BirthDate, units = "days") > > I can repeat > > sum(TimeToWean == 20) > > with as many other values are needed to build up a frequency table, > but is there a simpler way in R version 1.8.1? > perhaps tabulate() will do what you want. For a somewhat more expansive output, you might look at the freq() function in "Kickstarting R" which can be browsed online at:
http://cran.r-project/doc/contrib/Lemon-kickstart/index.html see the section "Frequencies". Jim ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
