Edge weight

From FLWiki

In Flying Logic, every edge (except back edges) has an associated edge weight that can range in value from -1.0 … 1.0 (and which can also be thought of as a percentage from -100% to 100%.)

Edge weights usually represent the strength of a probablistic correlation between a cause and an effect. If an edge has a weight of 0.0, there is no correlation between the cause (i.e., the predecessor entity) and the effect (i.e., the successor entity.) Positive edge weights represent positive correlations (i.e., the more likely the cause, the more likely the effect), while negative edge weights represent negative correlations, (i.e., the more likely the cause, the less likely the effect.)

And edge weight of -100% is commonly used as the logical NOT operation, giving True where the edge's input is false, and vice versa.

Edge weights can be displayed using the View > Edge Weights command. An edge weight is displayed and manipulated as an edge weight spinner, and the confidence value flowing through the edge is modified by the edge's weight along with the edge weighting function.