On Aug 13, 12:35 am, Larry Bates <[EMAIL PROTECTED]> wrote: > Dave wrote: > > Hey there, having a bit of problem iterating through lists before i go > > on any further, here is > > a snip of the script. > > -- > > d = "a1 b1 c1 d1 e1 a2 b2 c2 d2 e2 a3 b3 c3 d3 e3 a4 b4 c4 d4 e4 a5 b5 > > c5 d5 e5" > > inLst = d.split() > > hitLst = [] > > > hitNum = 0 > > stopCnt = 6 + hitNum > > > for i in range(hitNum,len(inLst), 1): > > if i == stopCnt: break > > hitLst.append(inLst[i]) > > > print hitLst > > -- > > $ python helper.py > > ['a1', 'b1', 'c1', 'd1', 'e1', 'a2'] > > > This works fine for my purposes, what I need is an outer loop that > > goes through the original list again and appends my next request. > > > ie. > > > hitNum = 5 > > > which will return: > > > ['a2', 'b2', 'c2', 'd2', 'e2', 'a3'] > > > and append it to the previous one. > > > ie: > > > ['a1', 'b1', 'c1', 'd1', 'e1', 'a2'] > > ['a2', 'b2', 'c2', 'd2', 'e2', 'a3'] > > > not really sure how to do this right now though, been trying several > > methods with no good results. > > > btw, just creating lagged values (sort of shift registers) on the > > incoming signal > > > Many thanks, > > > Dave > > Dave, > > You are going to need to supply us with more info to help. > > 1) Are you always going to want to get 6 elements from the list > 2) Are you always going to want to step by 5 elements as your offset each time > through the outer loop? > 3) Is your requirement just to split inLst into equal length lists and append > them together into a list? > > Depending on your answers this might be quite easy. > > -Larry
Hi Larry, well to answer your questions. 1) Are you always going to want to get 6 elements from the list yes for this example, but this will change depending on the length of the sig. hitNum will be changing depending on what element I need to lag ie: if hitNum = 1 ['b1', 'c1', 'd1', 'e1', 'a2', 'b2'] so I will be lagging the b elements. 2) Are you always going to want to step by 5 elements as your offset each time through the outer loop? I think I just answered this 3) Is your requirement just to split inLst into equal length lists and append them together into a list? yes Thanks for all your help, Dave -- http://mail.python.org/mailman/listinfo/python-list
