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:
- exogarray_like
The exogeneous data at which the derivative is computed.
- lin_predarray_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.