Curso Manipulación de datos con Pandas

Por

Ing. Catalina Urdaneta

MERGE

MERGE

LEFT JOIN

UNION ALL

RIGHT JOIN

INNER JOIN

RESULTADO

INNER JOIN

left = pd.DataFrame({'key1': ['K0', 'K0', 'K1', 'K2'],
                      'key2': ['K0', 'K1', 'K0', 'K1'],
                     'A': ['A0', 'A1', 'A2', 'A3'],
                      'B': ['B0', 'B1', 'B2', 'B3']})


right = pd.DataFrame({'key1': ['K0', 'K1', 'K1', 'K2'],
                       'key2': ['K0', 'K0', 'K0', 'K0'],
                       'C': ['C0', 'C1', 'C2', 'C3'],
                       'D': ['D0', 'D1', 'D2', 'D3']})
  

result = pd.merge(left, right, on=['key1', 'key2'])