statsmodels.discrete.discrete_model.Logit.cdf¶

Logit.cdf(X)[source]¶

The logistic cumulative distribution function

Parameters:¶

Xarray_like

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

Returns:¶

1/(1 + exp(-X))

Notes

In the logit model,

\[\Lambda\left(x^{\prime}\beta\right)= \text{Prob}\left(Y=1|x\right)= \frac{e^{x^{\prime}\beta}}{1+e^{x^{\prime}\beta}}\]