Description Usage Arguments Note Examples
Density, distribution function, quantile function and random generation for the inverse chi distribution with parameters a and b.
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x |
vector of quantities. |
a |
first parameter. Must be strictly positive. |
b |
second parameter. Must be strictly positive. |
p |
vector of probabilities. |
n |
number of observations. |
If X~Inv-Chi(a,b) then it has density f(x)=2b^ax^(-2*a-1)e^(-b/x^2)/Gamma(a). Also 1/X^2~Gamma(a,b).
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