October 2019
Beginner to intermediate
674 pages
16h 43m
English
Content preview from Mastering pandas - Second Edition
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pandas
In pandas, you can use the following command:
pd.merge(df1,df2,on='key')
The following is the output to the preceding commands:
Output of the inner join of the two DataFrames
As expected of an inner join, only the key values present in both the tables appear in the merged dataset.
Suppose we want to implement a left join between the two. This can be done in the two tools as shown here:
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