Hac is a simple library for hierarchical agglomerative clustering. the goal of hac is to be easy to use in any context that might require a hierarchical agglomerative clustering approach. you can use hac by bundling hac with your application, and by implementing two interfaces:
* experiment (to tell hac what to cluster), and
* dissimilaritymeasure (to tell hac how to compute the dissimilarity between
two observations).