Pandas: Rename a specific column name in a given DataFrame
Pandas: DataFrame Exercise-42 with Solution
Write a Pandas program to rename a specific column name in a given DataFrame.
Sample data:
Original DataFrame
col1 col2 col3
0 1 4 7
1 2 5 8
2 3 6 9
New DataFrame after renaming second column:
col1 Column2 col3
0 1 4 7
1 2 5 8
2 3 6 9
Sample Solution :
Python Code :
import pandas as pd
d = {'col1': [1, 2, 3], 'col2': [4, 5, 6], 'col3': [7, 8, 9]}
df = pd.DataFrame(data=d)
print("Original DataFrame")
print(df)
df=df.rename(columns = {'col2':'Column2'})
print("New DataFrame after renaming second column:")
print(df)
Sample Output:
Original DataFrame col1 col2 col3 0 1 4 7 1 2 5 8 2 3 6 9 New DataFrame after renaming second column: col1 Column2 col3 0 1 4 7 1 2 5 8 2 3 6 9
Python-Pandas Code Editor:
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Python: Tips of the Day
Join Strings in an Iterable:
>>> words = ('Hello', 'Python', 'Programmers') >>> '!'.join(words) 'Hello!Python!Programmers' >>> words_dict = {0: 'zero', 1: 'one', 2: 'two', 3: 'three'} >>> '&'.join(words_dict.values()) 'zero&one&two&three'
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