How to Select Numerical Input Features

Question 1

WHAT IS AN F-TEST? P1571t

Answer 1

An F-statistic, or F-test, is a class of statistical tests that calculate the ratio between variances values, such as the variance from two different samples.

Question 2

WHAT IS SCIKITLEARN’S IMPLEMENTATION OF ANOVA F-TEST NAMED? P158

Answer 2

The scikit-learn machine library provides an implementation of the ANOVA F-test in the f_classif() function.

Question 3

HOW CAN WE USE ANOVA TEST IN K-BEST? P158

Answer 3

By setting “score_func” parameter to f_classif.