1. A system for mapping the electrical activity of the heart, comprising: a catheter shaft with a plurality of electrodes coupled thereto; a processor, wherein the processor is capable of: collecting a set of signals from at least one of the plurality of electrodes, wherein the set of signals are collected over a time period; calculating at least one propagation vector from the set of signals; generating a data set from the at least one propagation vector; and generating a statistical distribution of the data set.