swap two columns python

BreadCode answered on November 2, 2021 Popularity 8/10 Helpfulness 4/10

answer swap two columns python

related How to swap two DataFrame columns?

swap two columns python

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# 2d array a[row][col] ,  swap the columns h and k
for i in range(row):
    a[i][k] , a[i][h] = a[i][h], a[i][k]

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Contributed on Nov 02 2021

BreadCode

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How to swap two DataFrame columns?

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### I create `swapColumns` function

It swaps the position of the two columns in the DataFrame and then renames the columns to reflect the swap.

    def swapColumns(df, col1, col2):
        # Get the list of column names in the DataFrame
        cols = df.columns
        
        # Get the index of the two columns to swap
        col1_idx = cols.get_loc(col1)
        col2_idx = cols.get_loc(col2)
        
        # Swap the two columns using the index
        df[[cols[col1_idx], cols[col2_idx]]] = df[[cols[col2_idx], cols[col1_idx]]]
        
        # Rename the columns to reflect the swap
        df.rename(columns = {col1:col2, col2:col1}, inplace = True)


# To use the function, you can pass in the DataFrame df and the two column names col1 and col2 like this :

	swapColumns(df, 'longitude', 'median_house_value')

This will swap the position of the longitude and median_house_value columns in the DataFrame df.

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Contributed on Mar 21 2023

Marawan Mamdouh

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swap two columns python

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