How to use 'shuffle dataframe' in Python

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114def shuffleDataFrame(df):
115 """ Shuffles the rows of a dataframe """
116 df.reset_index(inplace=True)
117 del df['index']
118 return df.reindex(np.random.permutation(df.index))

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29def shuffle(df, n=1):
30 ind = df.index
31 sampler = np.random.permutation
32 for i in range(n):
33 new_vals = df.take(sampler(df.shape[0])).values
34 df = pd.DataFrame(new_vals, index=ind)
35 return df

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