Update DataFrame Column in Python

To update the value of a column in a pandas DataFrame using the values from other columns, you can use the assignment operator (=) and perform the desired computation or manipulation. Here's an example:

import pandas as pd

# Create a sample DataFrame
data = {'A': [1, 2, 3],
        'B': [4, 5, 6]}
df = pd.DataFrame(data)

# Update column 'A' using values from column 'B'
df['A'] = df['B'] * 2

# Display the updated DataFrame
print(df)

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Output

A  B
0  8  4
1 10  5
2 12  6

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In his example, the values in column 'A' are updated by multiplying the corresponding values in column 'B' by 2. You can perform any desired computation or manipulation based on your requirements.