3D Confusion Matrix

I want to make a 3D confusion matrix. I made a 2D confusion matrix using the plotConfMat.m file from file exchange. My x,y and z axis have fixed values(i.e., 1,2,3,4,5).

if x==y | y==z | x==z
then
no_value;
%Ex: a(1,1,1) = no_value; 
%a(1,1,2) = no_value;
else
value;
%Ex:a(1,2,3) = 2.22;
%a(2,3,4) = 3.27;

and so on.

Can anyone help me how to do a 3D confusion matrix? I have gone through confusionMatrix3d.m file from file exchange, but I do not want a bar chart.