相关代码 |
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%svm2_figure:to look the figure of input data
%==============
%==============
clc
iris = load('example42_iris.txt');
x = iris(:,3:4);
y = 2*(iris(:,5) == 2)-1;
figure('name','输入数据图示','numbertitle','off');
plot(x(find(y==1),1)',x(find(y==1),2)','bs',x(find(y==-1),1)',x(find(y==-1),2)','ko')
axis(axis + [-0.1 +0.1 -0.1 +0.1])
legend('class one','class two',0);