numpy aray map values with dictionary

&gt;&gt;&gt; a = np.array([[1,2,3],
              [3,2,4]])
&gt;&gt;&gt; my_dict = {1:23, 2:34, 3:36, 4:45}
&gt;&gt;&gt; np.vectorize(my_dict.get)(a)
array([[23, 34, 36],
       [36, 34, 45]])

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numpy aray map values with dictionary

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