December 2017
Intermediate to advanced
386 pages
10h 42m
English
Content preview from SciPy Recipes
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Specifying the index column when reading a CSV file
In the previous example, the index is numerical, starting from 0, instead of being ordered by Date. This is because pandas does not assume that any specific column in the file should be used as the index. To help this situation, you can specify which column(s) should be the index in the call to read_csv() using the index_col parameter by assigning it the zero-based position of the column to be used as the index.
The following reads the data and tells pandas to use the column at position 0 in the file as the index (the Date column):
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.