Description Usage Arguments References See Also Examples
Computes quantile of the noncentral gamma function:
I_x(α, δ) = P(X≤ x)= ∑_{i=0}^∞ \frac{e^{-δ/2}(δ/2)^i}{i!} I_x(α+i)
where I_x(α) is the central incomplete gamma function, α>0, δ>0, x≥ 0.
1 | qgammanc(p, alpha, delta)
|
p |
a vector of cumulative probability values. |
alpha |
a vector of the noncentral gamma parameter, alpha > 0. |
delta |
a vector of the noncentrality parameter, delta > 0. |
Oliveira, IRC; Ferreira, DF Computing the noncentral gamma distribution, its inverse and the noncentrality parameter. Computational Statistics. Submmited for publications. 2012.
Package homepage: <www.dex.ufla.br/~danielff/r_rsources.html>
1 2 3 4 5 6 7 |
[1] 2.475778 4.840811 1.406599
[1] 4.840811
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