On 02/19/2015 12:58 PM, Gael Varoquaux wrote: > The question is: can we do this without breaking our pipeline delegation > mechanism that we use to set parameters during cross-validation in a > pipeline? I am not convinced that this is possible. Maybe a complex > mechanism overridding __getattr__, or in other ways the attribute lookup > in python, would do it, but that would be greater evil. All this is implemented in BaseEstimator.set_params, which is not overloaded in pipeline. Making it a function instead of a method should be as easy as replacing est.set_params(**params) by set_params(est, **params)
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