How to realize the regression without constant term in R language

This article will explain in detail how to realize the regression without constant terms in R language. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Regression without constant term (intercept term)

The lm () function in R contains constant terms by default, which can be achieved without constant terms by adding 0 or minus 1:

Lm (formula = mpg~cyl,data=mtcars) # contains constant terms

Lm (formula = mpg~cyl+0,data=mtcars) # not included

Lm (formula = mpg~cyl-1,data=mtcars) # there is a big gap between R2 and non-constant results, depending on the actual situation.

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