Created
January 13, 2021 10:26
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SIR model
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| def SIR_model(beta, gamma, t, N, I0, R0): | |
| """The function solves the SIR model to simulate | |
| the disease spreading""" | |
| S0 = N - I0 - R0 | |
| def deriv(y, t, N, beta, gamma): | |
| S, I, R = y | |
| dSdt = -beta * S * I / N | |
| dIdt = beta * S * I / N - gamma * I | |
| dRdt = gamma * I | |
| return dSdt, dIdt, dRdt | |
| ret = odeint(deriv, [S0, I0, R0], t, args=(N, beta, gamma)) | |
| return ret.T |
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