statsmodels.sandbox.regression.gmm.LinearIVGMM.fitgmm
LinearIVGMM.fitgmm(start, weights=None, optim_method=None, **kwds) [source]
estimate parameters using GMM for linear model Uses closed form expression instead of nonlinear optimizers Parameters:
start : not used starting values for minimization, not used, only for consistency of method signature weights : array weighting matrix for moment conditions. If weights is None, then the identity matrix is used optim_method : not used, optim