March 2018
Beginner to intermediate
570 pages
13h 42m
English
Content preview from Data Analysis with R, Second Edition - Second Edition
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Linear models
A small baking outfit in upstate New York called No Scone Unturned keeps careful records of the baked goods it produces. The left panel of Figure 9.1 is a scatterplot of diameters and circumferences (in centimeters) of No Scone Unturned's cookies, and depicts their relationship:
Figure 9.1: A scatterplot of diameters and circumferences of No Scone Unturned's cookies (left); the same plot with a best fit regression line plotted over the data points (right)
A straight line is the perfect thing to represent this data. After fitting a straight line to the data, we can make predictions about the circumferences of cookies that we haven't ...