1. A method of initializing a control model for a bioassay process, the method comprising: preparing a mixture of molecules; dividing the mixture of molecules into a number of aliquots; preserving the aliquots of the mixture of molecules; retrieving at least one aliquot of the preserved mixture; obtaining data from the at least one aliquot of the preserved mixture using the bioassay process; and computing a location of a centroid in n-dimensional space based on the data obtained from the at least one aliquot of the preserved mixture, the location of the centroid in n-dimensional space defining the control model.