Pandas – Compute the Euclidean distance between two series

Find the Difference Between Two Rows in Pandas

Example 1:

import pandas as pd 
import numpy as np 
  
  
# create pandas series 
x = pd.Series([1, 2, 3, 4, 5]) 
y = pd.Series([6, 7, 8, 9, 10]) 
  
# here we are computing every thing 
# step by step 
p1 = np.sum([(a * a) for a in x]) 
p2 = np.sum([(b * b) for b in y]) 
  
# using zip() function to create an 
# iterator which aggregates elements  
# from two or more iterables 
p3 = -1 * np.sum([(2 * a*b) for (a, b) in zip(x, y)]) 
dist = np.sqrt(np.sum(p1 + p2 + p3)) 
  
print("Series 1:", x) 
print("Series 2:", y) 
print("Euclidean distance between two series is:", dist) 

Output : Example 2:

import pandas as pd 
import numpy as np 
  
  
x = pd.Series([1, 2, 3, 4, 5]) 
y = pd.Series([6, 7, 8, 9, 10]) 
  
# zip() function creates an iterator 
# which aggregates elements from two  
# or more iterables 
dist = np.sqrt(np.sum([(a-b)*(a-b) for a, b in zip(x, y)]))     
  
print("Series 1:") 
print(x) 
  
print("Series 2:") 
print(y) 
  
print("Euclidean distance between two series is:", dist) 

Output : Example 3: In this example we are using np.linalg.norm() function which returns one of eight different matrix norms.

import pandas as pd 
import numpy as np 
  
  
x = pd.Series([1, 2, 3, 4, 5]) 
y = pd.Series([6, 7, 8, 9, 10]) 
dist = (np.linalg.norm(x-y)) 
  
print("Series 1:") 
print(x) 
  
print("Series 2:") 
print(y) 
  
print("Euclidean distance between two series is:", dist) 

Output : Example 4: Let’s try on a bigger series now:

import pandas as pd 
import numpy as np 
  
  
x = pd.Series([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]) 
y = pd.Series([12, 8, 7, 5, 6, 5, 3, 9, 7, 1]) 
dist = np.sqrt(np.sum([(a-b)*(a-b) for a, b in zip(x, y)])) 
  
print("Series 1:") 
print(x) 
  
print("Series 2:") 
print(y) 
  
print("Euclidean distance between two series is:", dist) 

Output :

Tags:

#Python pandas-dataFrame #Python-pandas #Python #python

Find the Difference Between Two Rows in Pandas

Pandas – Compute the Euclidean distance between two series

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