np vstack

>>> import numpy as np
>>> a = ([1,2,3,4,5])
>>> b = ([2,3,4,5,6])
>>> c = ([3,4,5,6,7])

>>> np.array([a, b, c])
array([[1, 2, 3, 4, 5],
       [2, 3, 4, 5, 6],
       [3, 4, 5, 6, 7]])

>>> np.stack([a, b, c], axis=0)
array([[1, 2, 3, 4, 5],
       [2, 3, 4, 5, 6],
       [3, 4, 5, 6, 7]])

>>> np.stack([a, b, c], axis=1)  # not what you want, this is only to show what is possible
array([[1, 2, 3],
       [2, 3, 4],
       [3, 4, 5],
       [4, 5, 6],
       [5, 6, 7]])

View another examples Add Own solution

IberoMedia 100 points

                                    &gt;&gt;&gt; a = np.array([1, 2, 3])
&gt;&gt;&gt; b = np.array([2, 3, 4])
&gt;&gt;&gt; np.vstack((a,b))
array([[1, 2, 3],
       [2, 3, 4]])
       
&gt;&gt;&gt; a = np.array([[1], [2], [3]])
&gt;&gt;&gt; b = np.array([[2], [3], [4]])
&gt;&gt;&gt; np.vstack((a,b))
array([[1],
       [2],
       [3],
       [2],
       [3],
       [4]])

Thank you! 10

3.89

J. Chris Compton 105 points

                                    import numpy as np
a = np.array([1, 2, 3])
b = np.array([2, 3, 4])
np.vstack((a,b))

Thank you! 9

3.89 (9 Votes)

Geek Mohammad 85 points

                                    &gt;&gt;&gt; a = np.array([1, 2, 3])
&gt;&gt;&gt; b = np.array([2, 3, 4])
&gt;&gt;&gt; np.vstack((a,b))
array([[1, 2, 3],
       [2, 3, 4]])

Thank you! 1

3 (1 Votes)

4.22

Majorrazerlazer 90 points

                                    &gt;&gt;&gt; a = np.array([[1], [2], [3]])
&gt;&gt;&gt; b = np.array([[4], [5], [6]])
&gt;&gt;&gt; np.vstack((a,b))
array([[1],
       [2],
       [3],
       [4],
       [5],
       [6]])

Thank you! 9

4.22 (9 Votes)

3.25

John Pease 105 points

                                    &gt;&gt;&gt; a = np.array([[1], [2], [3]])
&gt;&gt;&gt; b = np.array([[2], [3], [4]])
&gt;&gt;&gt; np.vstack((a,b))
array([[1],
       [2],
       [3],
       [2],
       [3],
       [4]])

Thank you! 4

3.25 (4 Votes)

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