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4 years ago
import pandas as pd
import numpy as np
ar1 = np.arange(2,20,2).reshape(3,3)
ar2 = ar1 + 1
np.concatenate([ar1,ar2])
array([[ 2,  4,  6],
       [ 8, 10, 12],
       [14, 16, 18],
       [ 3,  5,  7],
       [ 9, 11, 13],
       [15, 17, 19]])
np.concatenate([ar1,ar2],axis=1)
array([[ 2,  4,  6,  3,  5,  7],
       [ 8, 10, 12,  9, 11, 13],
       [14, 16, 18, 15, 17, 19]])