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Write a program in Python to check if a series contains duplicate elements or not
Input − Assume, you have the following series,
0 1 1 2 2 3 3 4 4 5
The above series contains no duplicate elements. Let’s verify using the following approaches.
Solution 1
Assume, you have a series with duplicate elements
0 1 1 2 2 3 3 4 4 5 5 3
Set if condition to check the length of the series is equal to the unique array series length or not. It is defined below,
if(len(data)==len(np.unique(data))): print("no duplicates") else: print("duplicates found")
Example
import pandas as pd import numpy as np data = pd.Series([1,2,3,4,5]) result = lambda x: "no duplicates" if(len(data)==len(np.unique(data))) else "duplicates found!" print(result(data))
Output
no duplicates
Solution 2
Example
import pandas as pd import numpy as np data = pd.Series([1,2,3,4,5,3]) if(len(data)==len(np.unique(data))): print("no duplicates") else: print("duplicates found")
Output
duplicates found!
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