September 2018
Beginner to intermediate
140 pages
2h 52m
English
Content preview from Applied Data Visualization with R and ggplot2
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Analyzing and Creating Boxplots
A boxplot (also known as a box and whisker diagram) is a standard way of displaying the distribution of data based on a file-number summary: minimum, first quartile, median, third quartile, and maximum. Boxplots can represent how a continuous variable is distributed for different categories; one of the axes will be a categorical variable, while the other will be a continuous variable. In the default boxplot, the central rectangle spans the first quartile to the third quartile (called the interquartile range, or IQR). A segment inside of the rectangle shows the median, and the lines (whiskers) above and below the box indicate the locations of the minimum and maximum, as shown in the following diagram:
The ...
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