torch_mvlgamma function

Mvlgamma

torch_mvlgamma(self, p)

Arguments

• self: (Tensor) the tensor to compute the multivariate log-gamma function
• p: (int) the number of dimensions

mvlgamma(input, p) -> Tensor

Computes the multivariate log-gamma function<https://en.wikipedia.org/wiki/Multivariate_gamma_function>_) with dimension $p$ element-wise, given by

where $C = \log(\pi) \times \frac{p (p - 1)}{4}$ and $\Gamma(\cdot)$ is the Gamma function.

All elements must be greater than $\frac{p - 1}{2}$, otherwise an error would be thrown.

Examples

if (torch_is_installed()) {

a = torch_empty(c(2, 3))$uniform_(1, 2)
a
torch_mvlgamma(a, 2)
}