定义:
Stack arrays in sequence horizontally (column wise).
Take a sequence of arrays and stack them horizontally to make a single array. Rebuild arrays divided by hsplit
.
This function continues to be supported for backward compatibility, but you should prefer np.concatenate
or np.stack
. The np.stack
function was added in NumPy 1.10.
用法:
>>> a = np.array((,,))
>>> b = np.array((,,))
>>> np.hstack((a,b))
array([, , , , , ])
>>> a = np.array([[],[],[]])
>>> b = np.array([[],[],[]])
>>> np.hstack((a,b))
array([[, ],
[, ],
[, ]])