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DOC: Clarify data alignment in 'dsintro' user guide #63131

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DOC: Clarify data alignment in 'dsintro' user guide #63131

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8 changes: 6 additions & 2 deletions doc/source/user_guide/dsintro.rst
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Expand Up @@ -16,8 +16,12 @@ objects. To get started, import NumPy and load pandas into your namespace:
import numpy as np
import pandas as pd

Fundamentally, **data alignment is intrinsic**. The link
between labels and data will not be broken unless done so explicitly by you.
A fundamental feature in pandas is **automatic data alignment**. This means
that pandas keeps your data attached to its labels (the index). When you
perform an operation, like adding two Series (columns), pandas will match them
by their labels, not by their position. The link between data and labels will
not be broken unless you explicitly change them yourself.


We'll give a brief intro to the data structures, then consider all of the broad
categories of functionality and methods in separate sections.
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