What do I need to know about the pandas index? (Part 1)

The DataFrame index is core to the functionality of pandas, yet it's confusing to many users. In this video, I'll explain what the index is used for and why you might want to store your data in the index. I'll also demonstrate how to set and reset the index, and show how that affects the DataFrame's shape and contents.

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== RESOURCES ==
GitHub repository for the series: https://github.com/justmarkham/pandas...
"loc" documentation: http://pandas.pydata.org/pandas-docs/...
"set_index" documentation: http://pandas.pydata.org/pandas-docs/...
"reset_index" documentation: http://pandas.pydata.org/pandas-docs/...
Indexing and selecting data: http://pandas.pydata.org/pandas-docs/...

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