RamsayE.weights(z) [source]
Ramsay’s Ea weighting function for the IRLS algorithm
The psi function scaled by z
| Parameters: | z (array-like) – 1d array |
|---|---|
| Returns: | weights – weights(z) = exp(-a*|z|) |
| Return type: | array |
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© 2006–2008 Scipy Developers
© 2006 Jonathan E. Taylor
Licensed under the 3-clause BSD License.
http://www.statsmodels.org/stable/generated/statsmodels.robust.norms.RamsayE.weights.html