inverse normal distribution? or quantiles of normal distribution (qnorm)

I need inverse normal distribution.
And another question is how to estimate garch-t(1,1) by R. Thank you very much!



2# vrooadk

inverse Gaussian distribution, right?
check out "statmod" package
dinvgauss(x, mu, lambda=1)
pinvgauss(q, mu, lambda=1)
qinvgauss(p, mu, lambda=1)
rinvgauss(n, mu, lambda=1)

Or "rmutil" package
dinvgauss(y, m, s, log=FALSE)
pinvgauss(q, m, s)
qinvgauss(p, m, s)
hinvgauss(y, m, s)
rinvgauss(n, m, s)

非常感谢！！！

软件包fgarch下的garchFit命令可以估计garch(1,1)~t. 3# linnanian