Sounds like making sure that percentages add to 100%. Why people check that is curious. On May 20, 2016 1:11 PM, "'Pascal Jasmin' via Programming" < programm...@jsoftware.com> wrote:
> Do you want an almost equal number of files in each group as well? > > A quick approach is to randomly split the files into groups, then > repeatedly take a large file out of a too big group, and place it into a > too small group. The average/target group size is quickly calculated. > > Also take a small file out of a too long group, and place it into a too > short group. > > > > > ----- Original Message ----- > From: Devon McCormick <devon...@gmail.com> > To: J-programming forum <programm...@jsoftware.com> > Sent: Friday, May 20, 2016 1:37 PM > Subject: Re: [Jprogramming] Even partitions > > It's an arbitrary grouping so that the sum of file sizes in each group is > nearly equal between groups. To roughly approximate a distribution, you > could use something like this: > szs=. (+/16 4000?@$400) + (+/8 4000?@$2e3) + (+/4 4000?@$5e5) + 4000?@$1e6 > On May 20, 2016 10:48 AM, "David Porter" <dpor...@cissoid.net> wrote: > > > Groups based on what? > > > > Dave > > On 5/20/2016 10:11 AM, Devon McCormick wrote: > > > >> I have a few thousand photos I want to put into a small number of groups > >> as > >> equally-sized as possible. It looks like a knapsack problem but I only > >> need to get within some tolerant equality. > >> > >> Has anyone done something like this? > >> > >> Thanks, > >> > >> Devon > >> ---------------------------------------------------------------------- > >> For information about J forums see http://www.jsoftware.com/forums.htm > > >> > > > > ---------------------------------------------------------------------- > > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
