What does python axis mean?

python axis means: 1. [axis=0] expresses columns, [axis=1] expresses rows; 2. The operation of equation [axis=i] is performed along the direction of change of the i-th dimension.

python axis means:

axis=0 expression column

axis=1 When expressing line

, rememberaxis=i, and the operation is performed along the direction of change of the i-th dimension;

For a 4*3*2*3 array:

axis=0, only the subscript of the 0th dimension changes during operation and the others remain unchanged.

axis=1, only the subscript of the 1st dimension changes during operation and the others remain unchanged.

axis=2, only the subscript of the 2nd dimension changes during operation and the others remain unchanged.

axis=3, only the subscript of the 3rd dimension changes during operation and the others remain unchanged.

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