Updated 2014 June 21st
The very first time I tried to use R was back in 2005 when I wanted to perform a Wilcoxon test. I was migrating from microbiology into bioinformatics and I still remember trying to follow this guide: http://cran.r-project.org/doc/manuals/r-release/R-intro.html. All I managed to do was waste a lot of paper by printing out the entire manual and typing out in verbatim Appendix A, which was a sample session, without understanding much. Since starting my PhD in 2010, I've had to use several of the R Bioconductor packages for performing some analyses. But it wasn't until recently when I enrolled in an online data analysis course that I learned a bit more about the language. This post is about doing simple stuff in R given my recent increase in exposure to the language.