network_picture_snn.m

来自「神经网络的工具箱, 神经网络的工具箱,」· M 代码 · 共 40 行

function network_picture_snn(units);
%NETWORK_PICTURE_SNN   Draw a picture of feed forward neural network.

cla;
set(gca, 'Units', 'normalized');
hold on;

L = size(units, 2);
dx = 0.9/(L-1);

nmax = max(max(units),2);
for l = 1:L
    dy = 0.9/(sqrt(nmax*units(l))-1);
    x{l} = 0.5 + dx*(l - (L+1)/2);  
    y{l} = 0.5 + dy*([1:units(l)] - (units(l)+1)/2);  
end

nmax = max(max(units(1), units(L)), 2);
y{1} = 0.5 + (0.9/(nmax - 1))*([1:units(1)] - (units(1)+1)/2);
y{L} = 0.5 + (0.9/(nmax - 1))*([1:units(L)] - (units(L)+1)/2);

for l = 2:L
    for u = 1:units(l)
        for i = 1:units(l-1)
            line([x{l}, x{l-1}], [y{l}(u), y{l-1}(i)]);
	end
        draw_circle(x{l}, y{l}(u), 0.01, 0.01, 'r-');
    end
end

for u = 1:units(1)
    draw_circle(x{1}, y{1}(u), 0.01, 0.01, 'r-');
end

axis([0 1 0 1]);
axis('off');

hold off;