how to merge two dataframes
df_merge_col = pd.merge(df_row, df3, on='id')
df_merge_colhow to merge two dataframes
df_merge_col = pd.merge(df_row, df3, on='id')
df_merge_colHow to join two dataframes by 2 columns so they have only the common rows?
import pandas as pd
import numpy as np
df1 = pd.DataFrame({'fruit': ['apple', 'banana', 'orange'] * 3,
'weight': ['high', 'medium', 'low'] * 3,
'price': np.random.randint(0, 15, 9)})
df2 = pd.DataFrame({'pazham': ['apple', 'orange', 'pine'] * 2,
'kilo': ['high', 'low'] * 3,
'price': np.random.randint(0, 15, 6)})
out = df1.merge(df2,left_on=('fruit','weight'),right_on=('pazham','kilo'),how='inner',suffixes=('_left','_right')).head(10)Copyright © 2021 Codeinu
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