203 Figure 7.13: A set of tness bound Gonzo screen images for a GA solving De Jong's F1 test problem. Three tness ranges are shown here, showing chromosomes within the ranges 26 to 35 top left, 26 to 30 top right and 26 to 27 bottom left and right. The bottom two screen images show t wo diierent schema selected by the user in the schema highlighting dialog third left. These illustrate the diierent schema structures held by t wo near optimum solutions shown in these two screen images as the lowest right-most coloured box and the highest left-most coloured box in the search space matrix. The same screen layout is used here as in Figure 7.12.