Exploratory Data Analysis for Feature Selection in Machine …
6.2.1 Data type and missing value 21 6.2.2 Numerical attributes 22 6.2.3 Categorical attributes 24 6.3 Correlation analysis 25 6.3.1 Categorical versus categorical 25 6.3.2 Numerical versus numerical 26 6.3.3 Categorical versus numerical 28 Appendix 29 A. Hypothesis testing 29 B. Pearson correlation coefficient 30 C. Student T-test 31
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