Density of the inverse gamma distribution. Equivalent to extraDistr::dinvgamma(x, alpha, beta = 1, log = FALSE) in R. f(x) = beta^alpha x^(-alpha-1) exp(-beta/x) / Gamma(alpha).
extraDistr::dinvgamma(x, alpha, beta = 1, log = FALSE)
Value(s) at which to evaluate: a number, number[] or Float64Array. The result has the same shape.
number[]
Float64Array
Shape parameter.
beta (see InvgammaParams) and log (see DensityOptions).
beta
log
dinvgamma(1, 3); // 0.18393972058572117dinvgamma(0.5, 3, { beta: 2 }); // 1.1722008888789877 Copy
dinvgamma(1, 3); // 0.18393972058572117dinvgamma(0.5, 3, { beta: 2 }); // 1.1722008888789877
Density of the inverse gamma distribution. Equivalent to
extraDistr::dinvgamma(x, alpha, beta = 1, log = FALSE)in R. f(x) = beta^alpha x^(-alpha-1) exp(-beta/x) / Gamma(alpha).