November 2015
Beginner to intermediate
302 pages
6h 17m
English
book
Python Data Visualization Cookbook (Second Edition)
by Igor Milovanovic, Dimitry Foures, Giuseppe Vettigli
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Creating contour plots
A contour plot displays the isolines of a matrix. Isolines are curves where a function of two variables has the same value.
In this recipe, you will learn how to create contour plots.
Getting ready
Contours are represented as contour plots of the matrix Z, where Z is interpreted as height with respect to the XY plane. Z is of minimum size 2 and must contain at least two different values.
The problem with contour plots is that if they are coded without labeling the isolines, they are rendered pretty useless as we cannot decode the high points from the low points or find local minimas.
Here, we need to label the contour as well. The labeling of isolines can be done by using either labels (clabel()) or colormaps. If your output ...
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.