Plot self-organizing map neighbor distances
plotsomnd(net) plots a
showing neurons as gray-blue patches and their direct neighbor relations
with red lines. The neighbor patches are colored from black to yellow
to show how close each neuron's weight vector is to its neighbors.
This plot supports
SOM networks with
x = iris_dataset; net = selforgmap([5 5]); net = train(net,x); plotsomnd(net)