matlab传染病模型五种代码
时间: 2023-09-15 07:15:44 浏览: 150
以下是 MATLAB 中五种常见的传染病模型的代码:
1. SIR 模型(Susceptible-Infected-Recovered)
```matlab
function dydt = SIR(t,y,beta,gamma)
dydt = [-beta*y(1)*y(2);beta*y(1)*y(2)-gamma*y(2);gamma*y(2)];
end
```
2. SEIR 模型(Susceptible-Exposed-Infected-Recovered)
```matlab
function dydt = SEIR(t,y,beta,sigma,gamma)
dydt = [-beta*y(1)*y(3);beta*y(1)*y(3)-sigma*y(2);sigma*y(2)-gamma*y(3);gamma*y(3)];
end
```
3. SIS 模型(Susceptible-Infected-Susceptible)
```matlab
function dydt = SIS(t,y,beta,gamma)
dydt = [-beta*y(1)*y(2)+gamma*y(2);beta*y(1)*y(2)-gamma*y(2)];
end
```
4. SEIRS 模型(Susceptible-Exposed-Infected-Recovered-Susceptible)
```matlab
function dydt = SEIRS(t,y,beta,sigma,gamma,xi)
dydt = [-beta*y(1)*y(3)+xi*y(4);beta*y(1)*y(3)-sigma*y(2);sigma*y(2)-gamma*y(3);gamma*y(3)-xi*y(4);xi*y(4)];
end
```
5. SIRV 模型(Susceptible-Infected-Recovered-Vaccinated)
```matlab
function dydt = SIRV(t,y,beta,gamma,v_rate)
dydt = [-beta*y(1)*y(2)+v_rate*y(4);beta*y(1)*y(2)-gamma*y(2);gamma*y(2);-v_rate*y(4)];
end
```
以上代码仅为示例,实际使用时需要根据具体情况进行修改和调整。
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