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renhe
10,282 Pointsfilter_col_by_bool
Why does filter_col_by_bool use item instead of row?
1 Answer
Chris Freeman
Treehouse Moderator 68,423 PointsIn the code, for item in data_sample[1:]:, the data_sample is all of the data, and data_sample[1:] is all of the rows of the data, skipping the first row. Therefore in the for loop, item represents each row, one at a time. And item[col] is the column item with in the row represented by item.
Post back if you have more questions. Good Luck!!!