Some time back the animations below went sort of viral in the statistical programming community. In them, economics professor Nick Huntington-Klein demonstrates step-by-step how statistical tests estimate effect sizes. You will find several other animations in Nick’s original blog, and the associatedtwitter thread. Moreover, if you are interested in the R code to generate these…

# Tag: matching

## Regular Expressions in R – Part 1: Introduction and base R functions

The following is the first part of my introduction to regular expression (regex), in general, and the use of regex in R, in specific. It is loosely inspired on the swirl() tutorial by Jon Calder. I created it in R Markdown and uploaded it to RPubs, for an easier read. Regular expression A regular expression, regex or regexp…