hadley wickham wrote: >>Thing is, for one reason or another, the number of marbles per bag may >>systematically vary with age too. However, I am not interested in the >>number of marbles per bag, so I would like to group the students into 8 >>groups such that each group has the same total number of marbles. (Each >>group having a different sized age range, none the less ordered by age). > > > This sounds very much like a bin-packing problem > (http://en.wikipedia.org/wiki/Bin_packing_problem), which is NP-hard. > The wikipedia page mentions some heuristics you may want to look into. > > Hadley
Man, I hate NP-hard problems! Thanks for the link :) Dan. ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
