How Python adds matrix dimensions

This time for you to bring Python how to increase the matrix dimension, Python added matrix dimension of the note what, the following is the actual case, take a look.

Numpy.expand_dims (A, axis)

Examples

>>> x = Np.array ([+]) >>> X.shape (2,) >>> y = np.expand_dims (x, axis=0) >>> Yarray ([ [1, 2]]) >>> Y.shape (1, 2) >>> y = np.expand_dims (x, Axis=1) # equivalent to x[:,newaxis]>>> yarray ([[1] ,    [2]]) >>> Y.shape (2, 1)

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