Quantnet :: Show

u = -3 : 0.01 : 3;
K_Uniform = 0.5 * (abs(u) <= 1);
K_Triangle = (1 - abs(u)) .* (abs(u) <= 1);
K_Epanechnikov = 0.75 * (1 - u .^ 2) .* (abs(u) <= 1);
K_Quartic = 0.9375 * (1 - u .^ 2) .^ 2 .* (abs(u) <= 1);
K_Triweight = 1.0938 * (1 - u .^ 2) .^ 3 .* (abs(u) <= 1);
K_Gaussian = 0.3989 * exp(-0.5 * u .^ 2);
subplot(2, 3, 1), plot(u, K_Uniform); title('Uniform'); ylim([0, 1.1]);
subplot(2, 3, 2), plot(u, K_Triangle); title('Triangle'); ylim([0, 1.1]);
subplot(2, 3, 3), plot(u, K_Epanechnikov); title('Epanechnikov'); ylim([0, 1.1]);
subplot(2, 3, 4), plot(u, K_Quartic); title('Quartic (biweight)'); ylim([0, 1.1]);
subplot(2, 3, 5), plot(u, K_Gaussian); title('Gaussian'); ylim([0, 1.1]);