Codon usage software

    This page contains software for the analysis of codon usage in DNA coding sequences.

    CodonR: R source code and perl scripts for calculating tAI and the S test for translational selection.

    CodonW: modified version of the popular program for codon usage analysis. This version was tested on Linux, and the modification relieves the restriction on Nc values larger than 61 (this is done for statistical reasons when performing the S test above).

New!

tAI is now available as an R package in github: mariodosreis/tai

You can install the package directly from R if you have devtools installed:

> devtools::install_github("mariodosreis/tai")

The tAI package is simply the code within codonR above repacked for easiness of use and installation. Enjoy!