Pandas: Index of certain element of a Series

Last update on May 01 2025 12:55:56 (UTC/GMT +8 hours)

18. Get Index of an Element in a Series

Write a Pandas program to get the index of an element of a given Series.

Sample Solution:

Python Code :

import pandas as pd
ds = pd.Series([1,3,5,7,9,11,13,15], index=[0,1,2,3,4,5,7,8])
print("Original Series:")
print(ds)
print("\nIndex of 11 in the said series:")
x = ds[ds == 11].index[0]
print(x)

Sample Output:

Original Series:
0     1
1     3
2     5
3     7
4     9
5    11
7    13
8    15
dtype: int64

Index of 11 in the said series:
5

For more Practice: Solve these Related Problems:

Write a Pandas program to locate the index of a specified element in a Series using index() and then output the result.
Write a Pandas program to search for an element in a Series and then return its integer index position.
Write a Pandas program to find the index of the first occurrence of a value in a Series and then print that index.
Write a Pandas program to retrieve the index positions of all occurrences of a given element in a Series and then display them as a list.

Go to:

Previous: Write a Pandas program to extract elements in the given positional indices along an axis of a dataframe.

Next: Write a Pandas program to select a specific row of given series/dataframe by integer index.

Python Code Editor:

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