1. A system comprising: an input device for inputting requested information; a controller connected to the input unit for retrieving data associated with a group of wafers based on the requested information, wherein each wafer in the group of wafers includes one or more circuit dice, wherein each of the circuit dice is located at a coordinate; a calculating unit for performing a calculation on the data; and a display unit for displaying results from the calculation in the form of a wafer map, wherein the wafer map includes a plurality of map sections representing the circuit dice of the group of wafers, wherein each of the map sections includes an indicator representing a calculation result for circuit dice located at the same coordinate among the wafers.