Hello, would like to ask for your help on the following issue: What procedure can I use to detect if there's a change when iterating over a list?
For instance if I want to extract the years 1997 and 1998 from the table below and save them into separate files? How do I build the average only on the 1997-year values? Or how do find out that there is three successive values 3*2 and 3*2 in the volume column? I already tried a for-loop in connection with a last_value == current value comparison but wasn't successful at all. Therefore, I highly appreaciate any hint or pointer! Example data: Year month volume 1997 1 2 1997 2 2 1997 3 2 1997 4 5 1997 5 2 1997 7 1 1998 1 2 1998 2 6 1998 3 3 1998 4 3 1998 5 3 1998 6 1 Thanks and kind regards, Tim Michelsen _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
