Hello, I do not manage to find out how to use a LeaveOneGroupOut crossvalidation stratergy with RidgeCV. The problem is that I do not see how to pass the groups mapping.
Any hint? The approach by GridSearch is way to slow to be practical. Thanks in advance! PS: Thanks Alex for the response to my previous question. By the way, the context is fMRI data, so I am running the Ridge regression in about 200.000 voxels. -- -- Christophe Pallier <christo...@pallier.org> INSERM-CEA Cognitive Neuroimaging Lab, Neurospin, bat 145, 91191 Gif-sur-Yvette Cedex, France Tel: 00 33 1 69 08 79 34 Personal web site: http://www.pallier.org Lab web site: http://www.unicog.org
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