There are 3 lists: water, nutri and mineral. They differ in length: print(len(water)) - 20 print(len(nutri)) -21 print(len(mineral)) -21 add them to df Pandas dataframe in the following format: index treatments value 0 0 water 25 1 1 water 30 2 2 water 28 3 3 nutri 36 4 4 nutri 29 5 0 nutri 45 6 1 mineral 55 7 2 mineral 29 8 3 mineral 56

# function to create a new data frame, water, mineral, nutri and then concatenate them to form a new df
def df_maker(df, name):
    df['treatments'] = name
    df = df.reset_index()
    df = df[['index', 'treatments', 'value']]
    return df

# create water df
water = df_maker(water, 'water')

# create nutri df
nutri = df_maker(nutri, 'nutri')

# create mineral df
mineral = df_maker(mineral, 'mineral')

# combine df
combined_df = pd.concat([water, nutri, mineral])
combined_df