example1.m

来自「这个是支持向量聚类机用matlab编译的主程序和部分子程序」· M 代码 · 共 33 行

% 
% Example1: 
% ---------
% Shape: A Triangle 
% Dimension: 2
% with outliers

function [Samples, nof_samples, classification] = Example1()

% The first sample is at  (0.1,0.05)
Samples = [0.1; 0.05];

% Add more(99) samples randomly choosen from the [0,1] interval
for i = 1:99
    x = rand(2,1);
    % y must be larger then x to create the triangle
    while x(2) > x(1)
          x = rand(2,1);
    end
    Samples = [Samples x];
end

% Outliers:
%add=[0.52 0.51 0.50 0.49 0.48 0.47 0.46 0.45 0.44 0.43 0.42 0.41 0.40 0.39 0.38; 0.48 0.49 0.50 0.51 0.52 0.53 0.54 0.55 0.56 0.57 0.58 0.59 0.60 0.62 0.63];
add=[0.50 0.40 0.30 0.20 ; 0.50 0.60 0.70 0.80];
Samples = [Samples, add];

% Plot
figure;
plot(Samples(1,:),Samples(2,:),'+');

nof_samples = size(Samples,2);
classification = zeros(nof_samples,1);