8
Index Alignment
Introduction
When Series or DataFrames are combined, each dimension of the data automatically aligns on each axis first before any computation happens. This silent and automatic alignment of axes can confuse the uninitiated, but it gives flexibility to the power user. This chapter explores the Index object in-depth before showcasing a variety of recipes that take advantage of its automatic alignment.
Examining the Index object
As was discussed previously, each axis of a Series and a DataFrame has an Index object that labels the values. There are many different types of Index objects, but they all share common behavior. All Index objects, except for the MultiIndex, are single-dimensional data structures that combine the functionality ...
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