Is there some kind of "experimental" compressor that gives statistical information on how often some special byte combinations repeat or how often something cannot be compressed and how long those blocks are, perhaps also what different methods can be applied or not like markov models, wave-offsets or other compressable bit-patterns? Google did not help to find anything usable. Do all compressor coders make their own test suites alone again or only code down their ideas and look how it´s getting? Any idea? The only thing that offers some data analysis I found is Cryptool 2.