statsmodels.robust.norms.TrimmedMean.weights#

TrimmedMean.weights(z)[source]#

Least trimmed mean weighting function for the IRLS algorithm

The psi function scaled by z.

\[\begin{split}w(z) = \begin{cases} 1 & \text{for } |z| \le c \\ 0 & \text{for } |z| > c \end{cases}\end{split}\]
Parameters:
zarray_like

1d array

Returns:
weightsndarray

The value of the weighting function.