At RStudio, we’re hosting our Introduction to R Workshop this May in two locations. As an R-help subscriber, we’re offering 10% off! Intro to data science with R (http://goo.gl/bplg3) May 13-14 New York City Intro to data science with R (http://goo.gl/VCUFL) May 20-21 San Francisco Bay Area What will you learn? Practical skills for visualizing, transforming, and modeling data in R....