Slicing through the middle of the above tetrahedron, from the Something about the state of subsystem B associated with the second index. To which the state of subsystem A associated with the first index tells us The blue 'saddles' on either side of the egg areĬontours of constant mutual information, a KL measure of the extent This is a useful measure of deviationįrom the center. The orange 'egg' in the center is a contour of constant Kullback-Leibler (KL)ĭivergence with respect to uniform. Or the horizontal edge on the back side of the model? Two edges prescribe a relationship between the first and second indices.Ĭan you figure out how to label the vertical edge that faces you, Six edges hold a single probabilty subscript constant, while the other (The triangular facesĬorrespond to a sum of three probabilities set to 1.) Four of the ThisĬorresponds to a pair of subsystems like coins or half-integral spins,Įach of which can be in one of only two possible states.Ĭorrespond to a single probability set to 1, while the edge labels correspond

Partly labeled view of the L=2 n=2 tetrahedral 3-simplex. Niche network have to tell us? Let's start simple. Simplex geometry Simplex Geometry Two layer & two states/layer case in three dimensions

Simplex mathematica