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 measure performance differences between each fitted model:
- Resample the three generated models:
> cv.values = resamples(list(glm = glm.model, svm=svm.model, rpart = rpart.model))
- Then, you can obtain a summary of the resampling result:
> summary(cv.values) Output Call: summary.resamples(object = cv.values) Models: glm, svm, rpart Number of resamples: 30 ROC Min. 1st Qu. Median Mean 3rd Qu. Max. NA's glm 0.7206 0.7847 0.8126 0.8116 0.8371 0.8877 0 svm 0.8337 0.8673 0.8946 0.8929 0.9194 0.9458 0 rpart 0.2802 0.7159 0.7413 0.6769 0.8105 0.8821 0 Sens Min. 1st Qu. Median Mean 3rd Qu. Max. NA's glm 0.08824 0.2000 0.2286 0.2194 0.2517 0.3529 0 svm 0.44120 0.5368 0.5714 0.5866 0.6424 0.7143 0 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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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.