Pandas: Find the index of a substring of DataFrame with beginning and end position
Write a Pandas program to find the index of a substring of DataFrame with beginning and end position.
Sample Solution:
Python Code :
import pandas as pd
df = pd.DataFrame({
'name_code': ['c0001','1000c','b00c2', 'b2c02', 'c2222'],
'date_of_birth ': ['12/05/2002','16/02/1999','25/09/1998','12/02/2022','15/09/1997'],
'age': [18.5, 21.2, 22.5, 22, 23]
})
print("Original DataFrame:")
print(df)
print("\nIndex of a substring in a specified column of a dataframe:")
df['Index'] = list(map(lambda x: x.find('c', 0, 5), df['name_code']))
print(df)
Sample Output:
Original DataFrame: name_code date_of_birth age 0 c0001 12/05/2002 18.5 1 1000c 16/02/1999 21.2 2 b00c2 25/09/1998 22.5 3 b2c02 12/02/2022 22.0 4 c2222 15/09/1997 23.0 Index of a substring in a specified column of a dataframe: name_code date_of_birth age Index 0 c0001 12/05/2002 18.5 0 1 1000c 16/02/1999 21.2 4 2 b00c2 25/09/1998 22.5 3 3 b2c02 12/02/2022 22.0 2 4 c2222 15/09/1997 23.0 0
Python Code Editor:
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