Simulate GARCH(1,1) models. This function is for internal purposes
  to generate data for examples and testing.
     
    
    Usage
    rgarch1p1(n, alpha, beta, omega, n.skip = 100)
 
    
    Arguments
    - n
- length of the generated time series. 
- alpha
- alpha parameters in the volatility equation. 
- beta
- beta parameters in the volatility equation. 
- omega
- constant term in the volatility equation. 
- n.skip
- number of additional observation to generate at the
    beginning of the time series. 
 
    
    Author
    Georgi N. Boshnakov
     
    
    Examples
    x <- rgarch1p1(100, alpha = 0.3, beta = 0.55, omega = 1, n.skip = 100)
## autocorrelations(x)
## partialAutocorrelations(x)