Tentativa_com_varias_entradas

z = [];
r = [];
s = [];
x1 = [];
x2 = [];

for i = 1:size(x,1)
    r = randperm(size(x,2));
    for j = 1:size(x,2)
        z(i,j) = r(j);
    end
end

for i = 1:size(x,1)
    for j = 1:size(x,2)
        s(i ,j) = x(i ,z(i ,j));
    end
end

for i = 1:size(s, 1)
    k = 1;
    for j = 1:size(s, 2)
        if (j/size(s, 2))*100 <= 70
            x1(i, j) = s(i, j);
        else
            x2(i, k) = s(i, j);
            k = k+1;
        end
    end
end

y = x1 + sin(2*x1);
y2 = x + sin(2*x);

net = feedforwardnet(20);
net.layers{1}.transferFcn = 'tansig';
net.layers{2}.transferFcn = 'tansig';
net = train(net,x1,y);

figure
Y = sim(net,x2);
plot(x1,y,'go',x2,Y,'bo');