R datascience book (#3891)

* R datascience book

Add "Data Analysis and Prediction Algorithms with R" by Rafael A. Irizarry

* fix  alphabetical order

free-programming-books.md

@@ -2377,6 +2377,7 @@ Kerridge (PDF) (email address *requested*, not required)
 * [Advanced R Programming](http://adv-r.had.co.nz) - Hadley Wickham
 * [An Introduction to Statistical Learning with Applications in R](http://www-bcf.usc.edu/~gareth/ISL/) - Gareth James, Daniela Witten, Trevor Hastie and Robert Tibshirani (PDF)
 * [Cookbook for R](http://www.cookbook-r.com) - Winston Chang
+* [Data Analysis and Prediction Algorithms with R](https://rafalab.github.io/dsbook/) - Rafael A. Irizarry
 * [Data Analysis for the Life Sciences](https://leanpub.com/dataanalysisforthelifesciences) - Rafael A Irizarry, Michael I Love *(Leanpub account or valid email requested)*
 * [Efficient R programming](https://csgillespie.github.io/efficientR/) - Colin Gillespie, Robin Lovelace
 * [Exploratory Data Analysis with R](https://leanpub.com/exdata) - Roger D. Peng *(Leanpub account or valid email requested)*