How can I perform advanced merges in pandas?
An example of an AI chatbot conversation about advanced merging techniques in pandas.
How can I perform advanced merges in pandas?
You can use the merge() function in pandas to perform advanced merges. What specific type of merge are you looking for?
I want to know how to do a merge with multiple keys.
To merge on multiple keys, you can pass a list of column names to the on parameter in the merge() function. For example: pd.merge(df1, df2, on=['key1', 'key2']).
What if I want to perform a left join instead?
You can specify the how parameter in the merge() function. For a left join, use: pd.merge(df1, df2, on=['key1', 'key2'], how='left').
Can I merge on indexes instead of columns?
Yes, you can merge on indexes by using the left_index and right_index parameters. Set them to True to merge on the index.
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