关于#MiniBatch#的问题，如何解决？

对于给出的Batch算法的程序DeltaBatch进行修改，使之变为使用Minibatch算法的程序，其中每个小批量的规模为2，共分为两个小批量
Batch算法程序：

function W = DeltaBatch(W, X, D)
alpha = 0.9;

dWsum = zeros(3, 1);

N = 4;
for k = 1:N
x = X(k, :)';
d = D(k);

v = W*x;
y = Sigmoid(v);

e     = d - y;    
delta = y*(1-y)*e; 

dW = alpha*delta*x;

dWsum = dWsum + dW;

end
dWavg = dWsum / N;

W(1) = W(1) + dWavg(1);
W(2) = W(2) + dWavg(2);
W(3) = W(3) + dWavg(3);
end