# statsmodels.genmod.generalized_estimating_equations.GEE.mean_deriv¶

GEE.mean_deriv(exog, lin_pred)[source]

Derivative of the expected endog with respect to the parameters.

Parameters: exog (array-like) – The exogeneous data at which the derivative is computed. lin_pred (array-like) – The values of the linear predictor. The value of the derivative of the expected endog with respect to the parameter vector.

Notes

If there is an offset or exposure, it should be added to lin_pred prior to calling this function.