% Create the datasetn
n=30;
x=round(rand(n,1)*100);
y=round(rand(n,1)*100);
X=[x(:), y(:)]';
% Create the data point
x=[40, 50]';
% Find the k nearest neighbors
k=5;
[index, distance]=knnSearch(x, X, k);
% Plot the result
plot(X(1,:), X(2, :), 'marker', '.', 'linestyle', 'none');
line(x(1), x(2), 'marker', '*');
line(X(1,index), X(2, index), 'marker', 'o', 'color', 'r', 'linestyle', 'none');
box on; axis image
fprintf('x=%s\n', mat2str(x));
fprintf('X=%s\n', mat2str(X));
fprintf('k=%s\n', mat2str(k));