teach.m

BP神经网络

function t=teach(nrnd)
% provide a teacher according to given pattern 
switch ceil(nrnd/8)-1
    case 1
        t=[1 -1 -1 -1 -1 -1 -1 -1 -1 -1];
    case 2
        t=[-1 1 -1 -1 -1 -1 -1 -1 -1 -1];
    case 3
        t=[-1 -1 1 -1 -1 -1 -1 -1 -1 -1];
    case 4
        t=[-1 -1 -1 1 -1 -1 -1 -1 -1 -1];
    case 5
        t=[-1 -1 -1 -1 1 -1 -1 -1 -1 -1];
    case 6
        t=[-1 -1 -1 -1 -1 1 -1 -1 -1 -1];
    case 7
        t=[-1 -1 -1 -1 -1 -1 1 -1 -1 -1];
    case 8
        t=[-1 -1 -1 -1 -1 -1 -1 1 -1 -1];
    case 9
        t=[-1 -1 -1 -1 -1 -1 -1 -1 1 -1];
    case 0
        t=[-1 -1 -1 -1 -1 -1 -1 -1 -1 1];
end