Numpy reshape (n ) to (n 1)

Reshape (n ) to (n 1)

'''
This code is contributed by :
Tanishq Vyas (github : https://github.com/tanishqvyas )
'''

actual = actual.reshape((actual.shape[0], 1))

Convert np shape (a,) to (a,1)

# numpy array/vector (n,) dimension -> (n,1) dimension conversion
a  = np.arange(3)         # a.shape  = (3,)
b  = a.reshape((3,1))     # b.shape  = (3,1)
c  = b.reshape((3,))      # c.shape  = (3,)

c2 = b.reshape((-1,1))    # c2.shape = (3,)

Numpy reshape

>>> a = np.array([[1,2,3], [4,5,6]])
>>> np.reshape(a, 6)
array([1, 2, 3, 4, 5, 6])
>>> np.reshape(a, 6, order='F')
array([1, 4, 2, 5, 3, 6])
>>> np.reshape(a, (3,-1))       # the unspecified value is inferred to be 2
array([[1, 2],
       [3, 4],
       [5, 6]])

Source: numpy.org

Numpy reshape (n ) to (n 1)

""" assuming that v is a numpy array with shape (N, ) """
new_v = v.reshape(-1, 1) # new_v.shape is (N, 1)

Similar codes

0 vote139 views1 answer
Find and flag duplicates pandas
Python
0 vote177 views1 answer
Get data from model with field name in django
Python Django
0 vote175 views1 answer
Python numpy read from stdin
Python
6 votes142 views2 answers
Python how to drop columns from dataframe
Python
0 vote157 views1 answer
Kivy lang
Python
12 votes159 views5 answers
Plot size
Python
4 votes139 views2 answers
Python index of last occurrence in string
Python
2 votes190 views2 answers
Localize timezone python
Python
1 vote153 views1 answer
Assigning values in python
Python
0 vote145 views1 answer
Check remote port is open or not using python
Python