David Smith is a Cloud Advocate at Microsoft and a director of the R Consortium. For more than a decade, he has been writing about applications of R at the Revolutions blog (blog.revolutionanalytics.com), and is a co-author of the R manual, Introduction to R. David is a regular presenter of presentations and workshops about R at useR!, EARL, ERum, NYCRConf, Ignite and many other events and meetups. David lives with his husband and two Jack Russell terriers in the San Francisco Bay Area. Follow David on Twitter as @revodavid.