What is Pandas DataFrame.set_index() ?
The Pandas Dataframe.set_index() method is used to assign a list, series, or another data frame as the index of a given data frame. It is particularly useful when combining multiple data frames, allowing for easy modification of the index. While an index column can be specified during data frame creation, set_index() provides a flexible way to change the index later on. In essence, it allows you to set a List, Series, or Data frame as the index of a Data Frame. But sometimes a data frame is made out of two or more data frames and hence later index can be changed using this method.
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Python | Pandas DataFrame.set_index()
In this article, we will discuss Pandas DataFrame.set_index() in Python. Python stands out as an excellent language for data analysis, largely due to its outstanding ecosystem of data-centric packages. Among these packages, Pandas plays a significant role in simplifying importing and analyzing data.