用MATLAB编写的最大类间方差阈值程序

来源：百度知道 编辑：UC知道 时间：2024/05/11 05:42:05
本人初学者哪位高手有源程序能不能提供学习一下 邮箱yuheng0604@sina.com

在Matlab下输入：edit zhidao_rk4_3.m，然后将下面两行百分号之间的内容，复制进去，保存
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function y=zhidao_rk4_3(t,x)
a=0.01;
b=0.02;
y=[x(1)-a*x(1)*x(2);-x(2)+b*x(1)*x(2)];
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

在Matlab下面输入：
t_end=15;
x0=[20;20];
[t,x]=ode45('zhidao_rk4_3',[0,t_end],x0);
plot(t,x);
legend('野兔','狐狸')