August 2015
Beginner to intermediate
294 pages
5h 20m
English
Content preview from Mastering Python for Data ScienceBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Trellis plots
A Trellis plot is a layout of smaller charts in a grid with consistent scales. Each smaller chart represents an item in a category, named conditions. The data displayed on each smaller chart is conditional for the items in the category.
Trellis plots are useful for finding structures and patterns in complex data. The grid layout looks similar to a garden trellis, hence the name Trellis plots.
The following code helps in plotting a trellis chart where for each combination of sex and smoker/nonsmoker:
>>> tips_data = pd.read_csv('Data/tips.csv') >>> plt.figure() >>> plot = rplot.RPlot(tips_data, x='total_bill', y='tip') >>> plot.add(rplot.TrellisGrid(['sex', 'smoker'])) >>> plot.add(rplot.GeomHistogram()) >>> plot.render(plt.gcf())
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