Are you talking about hidden patterns in evolution? Still don't understand how evolution relates to stochastic processes? Random variables? Time series? Random walk? Markov chain? Please clarify.
Here is a link to Stochastic processes so we are speaking the same language:
http://www.gweep.net/~rocko/sufficiency/node10.html
"Stochastic processes which occur in a deterministic system begin to look like life"