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statsmodels.robust.norms.HuberT.rho

HuberT.rho(z) [source]

The robust criterion function for Huber’s t.

Parameters: z (array-like) – 1d array
Returns: rho – rho(z) = .5*z**2 for |z| <= t

rho(z) = |z|*t - .5*t**2 for |z| > t

Return type: array

© 2009–2012 Statsmodels Developers
© 2006–2008 Scipy Developers
© 2006 Jonathan E. Taylor
Licensed under the 3-clause BSD License.
http://www.statsmodels.org/stable/generated/statsmodels.robust.norms.HuberT.rho.html