human
apply function to each row of data frame.
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Here is a Python function to apply to each row of data frame

import pandas as pd

def apply_to_each_row(df, func):
    """
    Apply function to each row of data frame.

    Args:
        df (pandas.DataFrame): data frame
        func (function): function to apply

    Returns:
        pandas.DataFrame: data frame

    """
    return df.apply(func, axis=1)

# Enter the data frame
df = pd.DataFrame({"a": [1, 2, 3], "b": [4, 5, 6]})

# Enter the function

def func(row):
    return row["a"] + row["b"]

# Calling the function
df = apply_to_each_row(df, func)

#Example Output

#Remember to inspect code for bugs.