## testing serial correlation args(serial.test) ## Portmanteau-Test var2c.serial <- serial.test(varsimest, lags.pt = 16, type = "PT.asymptotic") var2c.serial plot(var2c.serial, names = "y1") plot(var2c.serial, names = "y2") ## testing heteroscedasticity args(arch.test) var2c.arch <- arch.test(varsimest, lags.multi = 5, multivariate.only = TRUE) var2c.arch ## testing for normality args(normality.test) var2c.norm <- normality.test(varsimest, multivariate.only = TRUE) var2c.norm ## class and methods for diganostic tests class(var2c.serial) class(var2c.arch) class(var2c.norm) methods(class = "varcheck") ## Plot of objects "varcheck" args(vars:::plot.varcheck) plot(var2c.serial, names = "y1")