The population stability index (PSI) is a widely used statis- tic that measures how much a variable has shifted over time. PSI is also used to measure applicability of a model by measuring shift in either independent or dependent variables.
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In simple words, Population Stability Index (PSI) compares the distribution of a scoring variable (predicted probability) in scoring data set to a training data ...
The Population Stability Index (PSI) quantifies the shifts in the distribution of a variable between two datasets, indicating whether the underlying ...
Population Stability Index (PSI) is one of the widely used model monitoring metrics which measure the difference between the model development sample and ...