Enter ``1'' for a graph of G-density against Z, and ``2'' for a graph of G-density against Z and ratio simultaneously. The Z graph will be drawn in the lower right of the screen, the ratio graph beside it on the left. A subtree, basin or field for each of the set of rules specified will be drawn (at a small scale by default) in a window in the upper part of the screen. When complete the network's G-density (y-axis) is plotted against the rule's Z and/or ratio, x-axis.
If the rules specified are for a neighbourhood K<=3, or totalistic, the complete set of non-equivalent rules es ``clusters`` will be plotted (rules in a cluster have the same G-density, Z and ), subject to limiting the range of Z described below. Otherwise the following prompt is presented,
G-density graph: number of rules (default 1250):
Enter the number of rules to be plotted or accept the default. The rules will be selected at random, but with a bias to include an even distribution over values of Z. The following prompts is presented to limit the range of Z, firstly the lower limit, then the upper. Note that low values of Z should be avoided except for small network sizes, because in-degree (and G-density) will be very high. Very high in degree can exhaust computer memory or take a long time to compute.
set min Z (default 0.2):
set max Z (default 1):