Description Usage Arguments Details Value
psi
is an efficient and easy to use function computing model's PSI index(see details), return a numeric.
1 | psi(p1, p2, bins = 10, binMethod = "EF")
|
p1 |
A vector of prediction in train data. |
p2 |
A vector of prediction in test data. |
bins |
An integer, set the number of binnings, default |
binMethod |
A character string, specify the binning method, must be one of |
generally, when PSI < 0.1, model is highly stable; when 0.1-0.25, the stability of model is general; when > 0.25, the stability of model is bad, the model must be rebuilt.
A numeric
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