python - how to get subset of matrix in class numpy.matrix.defmatrix.matrix -

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python - how to get subset of matrix in class numpy.matrix.defmatrix.matrix -

the original matrix variable n , shape (138, 210). tried utilize n[:][:-1] , n[:][-1] subset of matrix n. shape of these 2 subsets (138,209) , (138,1). however, method not work. response (137,210) , (1,210). tried n[:-1][:], not work neither.

the type of n numpy.matrix.defmatrix.matrix

how can right answer?

does work you?

in [42]: n = np.random.rand(138, 210) in [43]: n[:, :-1].shape out[43]: (138l, 209l) in [44]: n[:, -1].shape out[44]: (138l,)

n[:, :-1] (138, 209) shape , n[:, -1] (138, 1) shape.

python numpy matrix

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