Extract Unique Values to New Column in Vaex DataFrame

This function accepts a Vaex DataFrame and a column name, and then extracts unique values from the specified column to add these values as a new column to the DataFrame.

Technology Stack : Vaex

Code Type : Function

Code Difficulty : Intermediate

                
                    
def vaex_unique_column(df, new_column_name):
    """
    This function adds a new column to a Vaex DataFrame with unique values from an existing column.
    """
    import vaex as vx
    
    # Extract unique values from the specified column and create a new column
    df[new_column_name] = df['existing_column'].unique()
    
    return df