Questions around BinningProcess() and how it handles missing values and monotonic trend

[priyankamishra31]

Missing Values
Can you please tell me how BinningProcess() handles missing value in dataset ? Does the process assign a random value to them or have them as a separate bin ?

Monotonic Trend
Do all the bins returned by the BinningProcess() follow monotonic trend by default?

Thanks for your help with this

[bmreiniger]

Missing values get their own bin, see e.g. this subsection of the tutorial.

Monotonic trends get detected. See this subsection of the tutorial, and the docstring of monotonic_trend of the OptimalBinning and related objects (docs for OptimalBinning), which defaults to "auto" when using the BinningProcess.