[scikit-learn] modifying CV score

[Joel Nothman]

Well, it returns the equivalent of

lambda estimator, X, y: estimator.score(X, y)



On 5 January 2017 at 08:47, Jonathan Taylor <jonathan.taylor at stanford.edu>
wrote:

> (Think this is right reply to from a digest... If not, apologies)
>
> Thanks for the pointers. From what I read on the API, I gather that for an
> estimator with a score method, inside GridSearchCV there will be
> pseudo-code like
>
>     ...
>     estimator.fit(X_train, y_train)
>     scorer = estimator.score
>     return scorer(X_test, y_test)
>
>
> For custom scores that are not methods of an estimator, I guess the
> `make_scorer` function returns a callable with the same signature as a
> score method of an estimator?
>
> --
> Jonathan Taylor
> Dept. of Statistics
> Sequoia Hall, 137
> 390 Serra Mall
> Stanford, CA 94305
> Tel:   650.723.9230 <(650)%20723-9230>
> Fax:   650.725.8977 <(650)%20725-8977>
> Web: http://www-stat.stanford.edu/~jtaylo
>
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