1. A method of processing signal data, comprising: providing one or more processors; receiving a time series of said signal data; and using one or more of the processors to process the signal data; where the one or more processors are programmed to process the signal data by performing the following steps: obtaining reinforceable repetitive synchronous data from said time series of signal data, obtaining time-time data from said reinforceable repetitive synchronous data, said time-time data comprising multiple data traces, each of said multiple data traces corresponding to a different time segment of the time series than each other of said multiple data traces, adding said time-time data in phase across said multiple data traces in a straight line to obtain a sum of said time-time data, and outputting said sum of said time-time data for at least one of display, storage, or further processing; and wherein said reinforceable repetitive synchronous data comprises rectified average delta data.