August 2019
Beginner to intermediate
353 pages
18h 48m
English
Content preview from Machine Learning with Python for Everyone
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4. Predicting Numerical Values: Getting Started with Regression
In [1]:
# setup from mlwpy import* %matplotlib inline
4.1 A Simple Regression Dataset
Regression is the process of predicting a finely graded numerical value from inputs. To illustrate, we need a simple dataset that has numerical results. sklearn comes with the diabetes dataset that will serve us nicely. The dataset consists of several biometric and demographic measurements. The version included with sklearn has been modified from raw numerical features by subtracting the mean and dividing by the standard deviation of each column. That process is called standardizing or z-scoring the features. We’ll return to the standard deviation later; briefly, it is a measure of how spread ...
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