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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How to do it...
Perform the following steps:
- First we plot the two boxplots of factor gears regarding mpg, with the plot separated from the transmission type:
> par(mfrow=c(1,2)) > boxplot (mtcars$mpg~mtcars$gear,subset=(mtcars$am==0),xlab='gear' , ylab = "mpg",main='automatic') > boxplot (mtcars$mpg~mtcars$gear,subset=(mtcars$am==1),xlab='gear', ylab = "mpg", main='manual')
The boxplots of mpg by the gear group and the transmission type
- Also, you may produce a boxplot of mpg by the number of forward gears * transmission type, with the use of the * operation in the boxplot function:
> boxplot(mtcars$mpg~factor(mtcars$gear)* factor(mtcars$am),xlab='gear ...
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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.