Variance of a log-normal distribution.

Source: R/lognormal.R

Computes \((\exp(sdlog^2) - 1) \exp(2 \cdot meanlog + sdlog^2)\).

# S3 method for class 'lognormal'
vcov(object, ...)

Arguments

object

A lognormal object.

...

Additional arguments (not used).

Value

The variance (scalar).

Examples

vcov(lognormal(0, 1))
#> [1] 4.670774