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Logit.pdf()

statsmodels.discrete.discrete_model.Logit.pdf

Logit.pdf(X) [source]

The logistic probability density function

Parameters:

X : array-like

X is the linear predictor of the logit model. See notes.
Returns:

pdf : ndarray

The value of the Logit probability mass function, PMF, for each point of X. np.exp(-x)/(1+np.exp(-X))**2

Notes

In the logit model,

\lambda\left(x^{\prime}\beta\right)=\frac{e^{-x^{\prime}\beta}}{\left(1+e^{-x^{\prime}\beta}\right)^{2}}

doc_statsmodels
doc_statsmodels
2017-01-18 16:11:42
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