On Tue, Mar 10, 2009 at 3:00 AM, flebber <flebber.c...@gmail.com> wrote: > On Mar 10, 8:54 pm, flebber <flebber.c...@gmail.com> wrote: >> Hi >> >> I was hoping someone would be able to point me in the direction of >> some good documentation regarding sequencing, grouping and filtering >> and in which order they should be done. >> >> As a small example it is easy to create the range of numbers 1 to 20. >> But if I wanted to group all possible combinations of sets of 4 >> numbers within this range is there already an in uilt function for >> this I am searching the module docs with "number sequencing" and >> "number grouping" but cannot find info. >> >> Then if I wanted to refine this results further eg no consecutive >> numbers to be contained in sets. Is it best to create all sets and >> then filter the sets for things matching this criteria or to set this >> condition in a creation. Creating sets and then filtering would soon >> become unwieldy with a larger range I would imagine.. >> >> An ideas, pointers to docs or better search terms to help me explore >> this further would be appreciated. >> >> Thanks Sayth > > I have just found itertools is this acheivable using combinations() > and groupby() in itertools?
Yes; indeed, those were the functions your post brought to mind and which led me to suggest itertools. Cheers, Chris -- I have a blog: http://blog.rebertia.com -- http://mail.python.org/mailman/listinfo/python-list
