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 to perform linear regression with lm:
- You should install the car package and load its library:
> install.packages("car")
> library(car)
- From the package, you can load the Quartet dataset:
> data(Quartet)
- You can use the str function to display the structure of the Quartet dataset:
> str(Quartet)
Output:
'data.frame': 11 obs. of 6 variables:
$ x : int 10 8 13 9 11 14 6 4 12 7 ...
$ y1: num 8.04 6.95 7.58 8.81 8.33 ...
$ y2: num 9.14 8.14 8.74 8.77 9.26 8.1 6.13 3.1 9.13 7.26 ...
$ y3: num 7.46 6.77 12.74 7.11 7.81 ...
$ x4: int 8 8 8 8 8 8 8 19 8 8 ...
$ y4: num 6.58 5.76 7.71 8.84 8.47 7.04 5.25 12.5 5.56 7.91 ...
- Draw a scatter plot of the x and y variables with plot, and append a fitted ...
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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.