How define iteration interval increment

[ichabod801]

We can specify that sort of thing with a range(), but I didn't see anything equivalent in iterrows. I generally avoid using range to iterate over indexes, preferring to iterate directly. You could do it with a range like this:

for row_index in range(0, len(data), 3):
    row = df.ix[row_index]
    print(row)

Although I think islice from the itertools built-in package might work better:

for index, row in itertools.islice(data.iterrows(), 0, len(d), 3):
    print(row)