////// Load data ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
from nilearn.datasets import fetch_mixed_gambles
mem = Memory(cachedir="cache", verbose=3)
data = mem.cache(fetch_mixed_gambles)("data/Jimura_Poldrack_2012_zmaps",
n_subjects=16, make_Xy=True)
X, y, mask_img = data.X, data.y, data.mask_img
// prepare input data for learner
n_samples = len(X)