there are three csv files for event.csv,train.csv,test.csv. But the event file is too large, I want to select some features to carry on the operation, and these partial features appear and count out from the train and test files.
so I"d like to ask you how to think about it and what corresponding python functions can be implemented.
pandas's DataFrame implements a SQL-like operation.
from_csv.html" rel=" nofollow noreferrer "> http://pandas.pydata.org/pand.
specifically read the documentation, which I'm not familiar with.
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