September 2018
Beginner to intermediate
140 pages
2h 52m
English
Content preview from Applied Data Visualization with R and ggplot2
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Types of Coordinates
Let's explore the types of coordinates:
- Cartesian (coord_cartesian() ): ggplot uses a Cartesian coordinate system by default, but sometimes, one might want to use polar coordinates, which is another way of looking at fractions. One possible use of the command is to transform a bar chart into a pie chart.
- Polar (coord_polar() ): In ggplot2, the Cartesian coordinates (x, y) become the polar coordinates theta and r. You can specify which coordinate is theta and which is r.
Let's see an example to understand polar coordinates in the next section.
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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.