October 2017
Beginner to intermediate
572 pages
26h 1m
English
book
Machine Learning with R Cookbook - Second Edition
by AshishSingh Bhatia, Yu-Wei, Chiu (David Chiu)
Content preview from Machine Learning with R Cookbook - Second Edition
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To see the effect of how an outlier can move the regression line away from the mainstream, you may replace the rlm function used in this recipe with lm, and replot the graph:
> plot(Quartet$x, Quartet$y3) > lmfit = lm(Quartet$y3~Quartet$x) > abline(lmfit, col="red")
Linear regression on variables x and y3
It is obvious that outlier (x=13) moves the regression line away from the mainstream.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.