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:

znumpy:array_like: 1d array

Returns:

weightsndarray: The value of the weighting function.

\[w(z) = 1\]