Lesser-Known Feature of the Merge Method in Pandas
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Lesser-Known Feature of the Merge Method in Pandas
While merging DataFrames in Pandas, keeping track of the source of each row in the output can be extremely useful.
You can do this using the 𝐢𝐧𝐝𝐢𝐜𝐚𝐭𝐨𝐫 argument of the 𝐦𝐞𝐫𝐠𝐞() method. As a result, it augments an additional column in the merged output, which tells the source of each row.
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