Not enough input arguments

Why is it said not enough input arguments at momentum1 = zeros(size(W1)); ?

function [W1, W5, Wo] = MnistConv(W1, W5, Wo, X, D)

alpha = 0.01;
beta = 0.95;

momentum1 = zeros(size(W1));
momentum5 = zeros(size(W5));
momentumo = zeros(size(Wo));

N = length(D);

bsize = 100;
blist = 1:bsize:(N-bsize+1);

for batch = 1:length(blist)
    dW1 = zeros(size(W1));
    dW5 = zeros(size(W5));
    dWo = zeros(size(Wo));
    
    begin = blist(batch);
    for k = begin:begin+bsize-1
        
        x  = X(:, :, k);
        y1 = Conv(x, W1);
        y2 = ReLU(y1);
        y3 = Pool(y2);
        y4 = reshape(y3, [],1);
        v5 = W5*y4;
        y5 = ReLU(v5);
        v  = Wo*y5;
        y  = Softmax(v);
        
        d = zeros(10, 1);
        d(sub2ind(size(d), D(k), 1)) = 1;
        
        e     = d - y;
        delta = e;
        e5    = Wo' * delta;
        delta5= (y5 > 0).* e5;
        e4    = W5' * delta5;
        e3    = reshape(e4, size(y3));
        e2 = zeros(size(y2));
        W3 = ones(size(y2)) / (2*2);
        
        for c = 1:20
            e2(:, :,c) = kron(e3(:, :, c), ones([2 2])) .*W3(:, :, c);
        end
        
        delta2 = (y2 > 0) .* e2;
        
        delta1_x = zeros(size(W1));
        
        
        for c = 1:20
            delta1_x(:, :,c) = conv2(x(:, :), rot90(delta2(:, :,c), 2), 'valid');
        end
        
        dW1 = dW1 + delta1_x;
        dW5 = dW5 + delta5*y4';
        dWo = dWo + delta*y5';
        
    end
    
 dW1 = dW1 / bsize;
 dW5 = dW5 / bsize;
 dWo = dWo / bsize;
 
 momentum1 = alpha*dW1 + beta*momentum1;
 W1        = W1 + momentum1;
 
 momentum5 = alpha*dW5 + beta*momentum5;
 W5        = W5 + momentum5;              
 
 momentumo = alpha*dWo + beta*momentumo;
 Wo        = Wo + momentumo;
end
end

Answer 1

[Stephen23]

"Why is it said not enough input arguments at momentum1 = zeros(size(W1)); ?"

Because you called the function without any input arguments (probably by clicking the big greeen "Run" button).

You need to call your function (e.g. from the MATLAB command line) with five input arguments, e,g.:

W1 = 1;
W5 = 2;
Wo = 3;
X = 4;
D = 5;
[W1, W5, Wo] = MnistConv(W1, W5, Wo, X, D)

Of course you will need to define appropriate arrays and values to suit whatever task you are doing, not just copy 1, 2, 3, etc. from my answer. And in future ignore that big green button.

[jikwan Bae]

it's not test code. run test MnistConvcode then run Matlab.