why are you passing [my_sample_weights] rather than just my_sample_weights?

On 23 Jun 2017 7:49 am, "Julio Antonio Soto de Vicente" <julio@esbet.es> wrote:

Hi Manuel,

Are you sure that you are using the latest version (or at least >0.17)? The code for splitting the sample weights in GridSearchCV has been there for a while now...

--

Julio

El 22 jun 2017, a las 23:33, Manuel Castejón Limas <manuel.castejon@gmail.com> escribió:

Dear all,

I posted the full question on StackOverflow and as it contains some figures I refer you to that post. 

https://stackoverflow.com/questions/44661926/sample-weight-parameter-shape-error-in-scikit-learn-gridsearchcv/44662285#44662285

I currently  believe that this issue is a bug and I opened an issue on GitHub.

To sum up, the issue is that GridSearchCV does not handle the splitting of the sample_weight vector during cross validation.

Nota bene: cross_val_score seems to handle the splitting OK, this issue seems to occurr only in GridSearchCV.

Any comments enlightening me and showing me how wrong I am are most welcome.

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