The Bioinformatics repository at my GitHub account contains a script I use to "build" the Human Genome: it creates the necessary genomic data structures that I need to run a DNA sequencing analysis. The data structures are Burrows-Wheeler indices that the genomic aligners (Bowtie2) need to get their job done.
I was arguing with a friend the other day about what exactly the word "bioinformatics" means — specifically, we were debating what fields or areas of research are involved: if you were to draw a 3-n Venn Diagram, what labels would each of the sets contain?
I love R, and I'm a real ggplot2 nut ... but writing complex programs in the R console, or the built-in editor, has never been my thing. Enter TextMate — its a great editor for writing R scripts in OS X. By using TextMate as your R editor you get a lot of niceties such as syntax highlighting, multiple carets, jump bars for navigating the workspace, code completion, code folding, and much more.