August 2015
Beginner to intermediate
294 pages
5h 20m
English
Content preview from Mastering Python for Data Science
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Linear regression
Linear regression is an approach in modeling that helps model the scalar linear relationship between a scalar dependent variable, Y, and an independent variable, X, which can be one or more in value:
Let's try to understand this using an example. The following table shows the list of height and weight of students in a class:
|
Height (inches) |
Weight (pounds) |
|---|---|
|
50 |
125 |
|
58 |
135 |
|
63 |
145 |
|
68 |
144 |
|
70 |
170 |
|
79 |
165 |
|
84 |
171 |
|
75 |
166 |
|
65 |
160 |
If we run this through a simple linear regression function, which will be covered in a later chapter, with the weight as a dependent variable, y, and the independent variable, x, which is the height, ...
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