The kNN classification process represented in PCA space, the input (colored) and output (grey) classes for Bone, Muscle, and Adipocyte, using the same principal component coordinates as in Fig. 2.GENNC with parametersN _χ²  = 2500, P ₀ = 0.01, and k = 2 was applied to the C2C12 data set. (a) Training set qualifiers only, with Bone labeled red (44), Muscle labeled blue (20), and Adipocyte labeled yellow (5). (b) A total of 201 blank qualifiers are assigned to Bone. (c) a total of 102 blank qualifiers are assigned to Muscle. (d) A total of eight blank qualifiers are assigned to Adipocyte.