How to Select Features Based on the Population Stability Index

Image by viarami from Pixabay

If you worked in credit risk, you probably heard about the Population Stability Index, or PSI. It measures the changes in a variable distribution and it is commonly used to assess the risk of using a variable in a predictive credit risk model.

Unstable features, that is, features whose distribution changes after certain events, in time or after policy…

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Lead Data Scientist, author of “Python Feature Engineering Cookbook”, instructor of machine learning at www.trainindata.com and developer of Python open-source.

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Sole from Train in Data

Sole from Train in Data

Lead Data Scientist, author of “Python Feature Engineering Cookbook”, instructor of machine learning at www.trainindata.com and developer of Python open-source.

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