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Compute the test set error

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neingeist 2014-11-06 13:49:17 +01:00
parent 78830aaea7
commit 2ab445f9a8
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ex5/ex5.m
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@ -218,3 +218,11 @@ end
fprintf('Program paused. Press enter to continue.\n'); fprintf('Program paused. Press enter to continue.\n');
pause; pause;
% Computing test set error
[~, best_i] = min(error_val, [], 1);
lambda_best = lambda_vec(best_i);
theta_best = trainLinearReg(X_poly, y, lambda_best);
error_test = linearRegCostFunction(X_poly_test, ytest, theta_best, 0);
fprintf('Test set error for best lambda = %f: %f\n', ...
lambda_best, error_test);