January 2018
Beginner to intermediate
316 pages
7h 14m
English
Content preview from Feature Engineering Made Easy
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Feature selection using hypothesis testing
Hypothesis testing is a methodology in statistics that allows for a bit more complex statistical testing for individual features. Feature selection via hypothesis testing will attempt to select only the best features from a dataset, just as we were doing with our custom correlation chooser, but these tests rely more on formalized statistical methods and are interpreted through what are known as p-values.
A hypothesis test is a statistical test that is used to figure out whether we can apply a certain condition for an entire population, given a data sample. The result of a hypothesis test tells us whether we should believe the hypothesis or reject it for an alternative one. Based on sample data ...
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