Automatically add unit delays in Neural Network

[nikos-kekatos]

Idea: break NN inputs into three parts and use example code

2 Inputs 3 Layers
net.numInputs=2;
net.inputConnect=[1 1;0 0;0 0;0 0];
net.layerConnect=[0 0 0 0;1 0 0 0;0 1 0 0;0 0 1 0];
net.inputs{1}.size=1;
net.inputs{2}.size=1;

Use Input Delays
Old ref, Mathworks guide

net.numInputDelays: 0 or a positive integer. Read only.
Maximum input delay according to all net.inputWeight{i,j}.delays.
net.numLayerDelays: 0 or a positive number. Read only.
Maximum layer delay according to all net.layerWeight{i,j}.delays.

Writing the input connects: here

net.inputConnect=[1 1;0 0;0 0;0 0];
net.layerConnect=[0 0 0 0;1 0 0 0;0 1 0 0;0 0 1 0];)
net.InputWeights{1,1}.delays=2

Structure
view(net)

Neural Network Time Series
There are some examples on Mathworks regarding input delays, eg. [1], [2]

Code
Started writing some code in the second big section of

testing/narx_structure.m