Randomly Shuffle Column Names in Vaex DataFrame

This function is used to randomly shuffle the column names of a Vaex DataFrame. It first converts the Vaex DataFrame to a Pandas DataFrame, then generates a random permutation of column names, and finally converts the shuffled Pandas DataFrame back to a Vaex DataFrame.

Technology Stack : Vaex, Pandas, NumPy

Code Type : Vaex DataFrame operation

Code Difficulty : Intermediate

                
                    
import vaex
import numpy as np
import pandas as pd
import random

def shuffle_columns(df):
    """
    Shuffle the column names of a Vaex DataFrame.
    """
    # Convert Vaex DataFrame to Pandas DataFrame for shuffling
    pandas_df = df.to_df()
    
    # Generate a random permutation of column names
    random_permutation = np.random.permutation(pandas_df.columns)
    
    # Shuffle the columns in the Pandas DataFrame
    shuffled_pandas_df = pandas_df[random_permutation]
    
    # Convert the shuffled Pandas DataFrame back to Vaex DataFrame
    shuffled_df = vaex.from_pandas(shuffled_pandas_df)
    
    return shuffled_df