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load -ascii house.dat houseD=house'; clear house [N, m] = size(houseD) class = 1 %rand('state',0); randn('state',0); %houseD = houseD(:,randperm(m)); Napp = ceil(m*2/3); Ntest = m-Napp app = houseD(:,1:Napp);size(app) test = houseD(:,Napp+1:end);size(test) unique(app(class,:)) unique(test(class,:)) ns = max(houseD') clear houseD