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Techniques for analyzing the relationship between one (or more) "dependent" variables and "independent" variables.

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138 views

Polynomial Regression model fits poorly

I was reading ISLR and implemented the least squares approach for a linear regression model on the autos data set which comes with the book. …
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How is the correlation matrix in table 3.5 in the book ISLR calculated? What does jt signify?

I was reading the book Introduction to statistical learning by Hastie and Tibshirani and there was this relationship between newspaper, radio & tv ads and their effect on sales in multiple linear regression