Difference between two numpy arrays in python

Question

I have two arrays  for example   array1 numpy array  1 1  2 2  3 3   array2 numpy array  1  2  3     How can I find the difference between these two arrays in Python  to give    0 1  0 2  0 3    As an array as well    Sorry if this is an amateur question - but any help would be greatly appreciated

User · Answer

This is pretty simple with numpy  just subtract the arrays   diffs   array1 - array2   I get   diffs    array   0 1   0 2   0 3

User · Answer

You can also use numpy subtract  It has the advantage over the difference operator  -  that you do not have to transform the sequences  list or tuples  into a numpy arrays     you save the two commands   array1   np array  1 1  2 2  3 3   array2   np array  1  2  3     Example   Python 3 5   import numpy as np result   np subtract  1 1  2 2  3 3    1  2  3   print   the difference     result    which gives you  the difference     0 1  0 2  0 3    Remember  however  that if you try to subtract sequences  lists or tuples  with the - operator you will get an error  In this case  you need the above commands to transform the sequences in numpy arrays  Wrong Code   print  1 1  2 2  3 3  -  1  2  3

[python] Difference between two numpy arrays in python

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