statsmodels.genmod.generalized_estimating_equations.OrdinalGEE.mean_deriv¶

OrdinalGEE.mean_deriv(exog, lin_pred)¶

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.

Returns:¶

• 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.