statsmodels.genmod.generalized_estimating_equations.NominalGEE.mean_deriv

NominalGEE.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, number of rows must be a multiple of ncut.

  • lin_pred (array_like) – The values of the linear predictor, length must be multiple of ncut.

Returns:

  • The derivative of the expected endog with respect to the

  • parameters.