Datasets
Data for each day
The dataset for each teaching day. Day 1 uses the official UCI bank marketing
file, 41,188 recorded calls with 20 inputs and the target. Columns are separated by semicolons,
not commas. Keep the file in a data folder beside the notebook. The remaining days
are released before each session.
The 20 input columns fall into four groups. They describe the client, the current
contact, the campaign history, and the economic conditions at the time. Two columns need
care. duration records how long the call lasted, which is only known once the
call has ended, so a model that predicts beforehand cannot use it. In pdays,
the value 999 means the client was never contacted before, not that 999 days passed.