To ensure that the scripts can be used effectively, it is recommended to have a recent version of R (2.15.0 or higher) installed on your computer.

For the last recipe, a modern web browser, such as Google Chrome, Internet Explorer 10, or Safari, will be required to visualize the interactive heat maps. Note that recent versions of Firefox (18.0 or higher) have problems with the optional zoom and panning features of the interactive heat maps.