What brought you to develop this library rather than relying on Incanter/Colt?
The scope of HipHip seems different, of course, but there is enough of an overlap to warrant the question.
I could be wrong, but I don't think Incanter has any Clojure-native means of generic operations over arrays at all.
Incanter's default Matrix implementation is now Catrix as well - which is a Clojure friendli(er) wrapper over jBLAS matrices. https://github.com/tel/clatrix Check out the source.