Any pointers to scheme/racket or clojure bayesian classification libraries? I need one for a toy/learning project that I\'m going to do.
Weka is kind of classic. It is a Java lib, so it can be accessed from Clojure
For clojure there is Incanter. It's more than just a bayes library. It is more akin to R. The documentation has two sections about it's bayes capabilities: 1, 2.
If you use Clojure, you have full access to Java libraries. Classifier4J seems to be a good fit, although development stopped several years ago. You should be able to find several more if you dig through Sourceforge (not sure what your specific requirements are).
There's also https://github.com/psantacl/naive-bayes-clj