ó °;çIc@s5dZddlZddlZddd„ƒYZdS(sDApproximate calculation of appropriate thresholds for motif finding iÿÿÿÿNtScoreDistributioncBsbeZdZd d„Zdd„Zd„Zd„Zd„Zd „Zd e d „Z d „Z RS(s Class representing approximate score distribution for a given motif. Utilizes a dynamic programming approch to calculate the distribution of scores with a predefined precision. Provides a number of methods for calculating thresholds for motif occurences. i icCs td|jƒƒ|_td|jƒƒ|j|_||j|_|j|jd|_dg|j|_d|j|j |jƒ s