Dear Joel, I'm just passing an iterable as I would do with any other sequence of parameters to tune. In this case the list only has one element to use but in general I ought to be able to pass a collection of vectors. Anyway, I guess that that issue is not the cause of the problem. El 23 jun. 2017 1:04 a. m., "Joel Nothman" <joel.nothman@gmail.com> escribió:
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-p arameter-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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