statsmodels.robust.norms.LeastSquares.weights¶

LeastSquares.weights(z)[source]¶

The least squares estimator weighting function for the IRLS algorithm.

The psi function scaled by the input z

Parameters:¶

z : array_like¶

1d array

Returns:¶

weights – weights(z) = np.ones(z.shape)

Return type:¶

ndarray