* Terry Carroll <[EMAIL PROTECTED]> [070426 07:14]: > I have a list (of arbitrary length) of lists, each sublist having a fixed > number N of items, all integers. > > I would like to produce a list of N items, each item of which is an > integer which is the average of the elements in the same position of each > of the sublists of the original list. > > I realize the wording above is all hash, so here's the example: > > Say the original list is: [[10, 20, 30], [50, 20, 90], [30, 20, 30]] > > I want the new list to be: [30, 20, 50]
Something like this? >>> src = [[10, 20, 30], [50, 20, 90], [30, 20, 30]] >>> [sum(x)/len(x) for x in zip(*src)] [30, 20, 50] Andreas _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
