pandas merge python
import pandas as pd
df1 = pd.DataFrame({'lkey': ['foo', 'bar', 'baz', 'foo'],
'value': [1, 2, 3, 5]})
df2 = pd.DataFrame({'rkey': ['foo', 'bar', 'baz', 'foo'],
'value': [5, 6, 7, 8]})
df1.merge(df2, left_on='lkey', right_on='rkey')merge two df
bigdata = pd.concat([data1, data2], ignore_index=True, sort=False)merge dataframe
In [46]: result = pd.merge(left, right, how="right", on=["key1", "key2"])Copyright © 2021 Codeinu
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