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load -ascii car [N, m] = size(car); class = N rand('state',0); randn('state',0); car = car(:,randperm(m)); Napp = 1152 Ntest = m-Napp app = car(:,1:Napp);size(app) test = car(:,Napp+1:end);size(test) unique(app(class,:)) unique(test(class,:)) ns = max(car') clear car % N, ns(class), Napp, Ntest, mean(ns),