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Modifying a single value in a Pandas DataFrame
schedule Aug 10, 2023
Last updated local_offer
Tags Python●Pandas
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To modify a single value in a Pandas DataFrame, use either:
Examples
Consider the following DataFrame:
df = pd.DataFrame({"A":[3,4], "B":[5,6]}, index=["a","b"])df
A Ba 3 5b 4 6
Using integer indices
To change the value 6 using integer indices:
df.iloc[1,1] = 10df
A Ba 3 5b 4 10
Using row and column labels
To change the value at row b, column B:
df.loc["b","B"] = 10df
A Ba 3 5b 4 10
Related
Pandas DataFrame | iloc property
Access and update specific rows/columns of the DataFrame using integer indices.
Pandas DataFrame | loc property
Access and update values of the DataFrame using row and column labels.
Published by Isshin Inada
Edited by 0 others
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