function [x, y, z] = hw06p6noisydata(n)
% hw06p6noisydata - produce 3 column vectors x, y, z of length n for Problem 5 in hw6
%
% Return vectors x,y for the noisy data points and vector z of 'noiseless' function values
    seed = 11;
    rng(seed);
    sc = 0.2;
    x = linspace(0, 1, n)';
    z = sin(pi*x);
    y = z + sc*(2*rand(n,1) - 1);
end