RK4                     Runge-Kutta 4th Order Method to Solve
                        Differential Equation
SEIQRDP                 Simulate generalized SEIR model
SEIQRDP_for_fitting     Fitted Results for SEIQRDP
checkRates              Check Rates
fit_SEIQRDP             Fit SEIQRDP function
getA                    Compute the matrix A
getDataCOVID            Get COVID-19 Data
getKappaFun             Estimate Death Rate
getLambdaFun            Estimate Recovery Rate
kappaFun                Anonymous function approximating the death rate
lambdaFun               Anonymous function approximating the recovery
                        rate
modelFun                Model function
plot_SEIQRDP            Plots for Epidemic Curves
predict_SEIQRDP         Predict cases using generalized SEIR model
