I've changed the default behavior of readChangeoDb() to use data.table::fread() in the current (development) version of the package in the default branch. As fread() doesn't currently support compressed (gz, etc) files, it'll fall back on utils::read.table() if fread() can't open the file. Also, I had it return a data.frame instead of a data.table. I'll have to check everything later for data.table compatibility before switching over entirely.
Please let me know if you have any trouble.
I'd like to test this out; how do I download the development version?
Jason Vander Heiden
It's pretty straight forward. The only tricky part is that if you are using Windows then you must install the same version of Rtools as your R version.
To install from the current code, first install the build dependencies: