In [469]: x = np.array([-1, 0, 1, 2])
In [470]: y = np.array([-2, -1, 0, 1])
join them into 2d array:
In [471]: np.array((x,y))
Out[471]:
array([[-1, 0, 1, 2],
[-2, -1, 0, 1]])
transpose that array:
In [472]: np.array((x,y)).T
Out[472]:
array([[-1, -2],
[ 0, -1],
[ 1, 0],
[ 2, 1]])
or use the standard Python zip - this treats the arrays as lists
In [474]: zip(x,y) # list(zip in py3
Out[474]: [(-1, -2), (0, -1), (1, 0), (2, 1)]
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