Basic Least Squares
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library(UsingR); data(galton) plot(galton$parent,galton$child,pch=19,col="blue") lm1 <- lm(galton$child ~ galton$parent) lines(galton$parent,lm1$fitted,col="red",lwd=3) |
abline() - This function adds one or more straight lines through the current plot.
Inference Basics
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sampleLm4$coeff |
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(Intercept) sampleGalton4$parent 15.8632 0.7698 |
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confint(sampleLm4,level=0.95) |
[crayon-663b8b1bf2f837720[......]