Monthly Archives: April, 2014 R Data Pre-Processing Script from Thursday (using the combn() function) April 21, 2014 Example SQL Queries from Thursday April 20, 2014 Simple slopes in ggplot2! April 17, 2014 Surface plots! April 17, 2014 citations in .rmd documents! April 7, 2014 Handy R tips! April 6, 2014 Totally new to R? Not for long. April 2, 2014 Matrix algebra in R April 1, 2014