Hi,
In both cases, search_cv is fitted on data_train but it’s said that the final model is refitted on the whole training set.
How the model knows about the whole dataset ? I don’t see it feeded anywhere to search_cv …
Thanks you !
What do we mean by the whole dataset, corresponding to the dataset provided during the fit call. Thus data_train.
While making the grid-search, it should be understood that data_train is then split into a further train and validation set internally for the search.
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