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compare two numpy arrays python

Coderunner answered on May 18, 2021 Popularity 9/10 Helpfulness 6/10

answer compare two numpy arrays python

related numpy compare arrays

compare two numpy arrays python

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import numpy as np
  
A = np.array([1, 1, 4.00003, 6])
B = np.array([2, 2, 4, 5])
is_A_B_equal = np.array_equal(A, B) # comparison is element wise

print(is_A_B_equal)
#------------------OUTPUT-----------------
False
#-----------------------------------------
# other logical operators for elements wise comparison: 
print(np.greater(A, B))
print(np.greater_equal(A, B))
print(np.less(A, B))
print(np.less_equal(A, B))
print(np.isclose(A, B)) # isclose() takes floating point error into 
                        # account, example 4 and 4.00003 are consider 
                        # to be close enough within floating point 
                        # tolerence.
#---------------OUTPUT-------------------
[False False  True  True]
[False False  True  True]
[ True  True False False]
[ True  True False False]
[False False  True False]
#----------------------------------------
# Or if single logical value is needed then all() method can be used.
# all() returns true if all elements-wise comparison are true else it 
# returns false. This is shown in output below: 
print(np.greater(A, B).all())
print(np.greater_equal(A, B).all())
print(np.less(A, B).all())
print(np.less_equal(A, B).all())
print(np.isclose(A, B).all())
#-----------------OUTPUT-----------------
False
False
False
False
False
#------------------------------------------
# Furthermore any() can be used in place of all() method. any() method
#returns true if any element-wise comparison is true.

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Source: numpy.org

Tags: arrays compare comparison-operators numpy python

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Contributed on Mar 07 2023

Coderunner

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bool isEqual = numpy.array_equal(Array1, Array2)

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Source: Grepper

Tags: arrays ar

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Contributed on May 18 2021

Delightful Dragonfly

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compare two numpy arrays python

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