Reparametrized lognormal distribution

A lognormal distribution parametrized as mean (ybar) and SDlog.

Usage

rlnorm2(n, mean = exp(0.5), sdlog = 1)

Arguments

n

number of random numbers desired.

mean

mean.

sdlog

log scale standard deviation.

Details

Log scale mean is log(mean) - sdlog^2/2.

Value

Vector of random numbers.

Author

Peter Solymos

See also

link{rlnorm}

Examples

summary(rlnorm2(10^6, 1.3, 0.5)) # mean ~ 1.3
#>     Min.  1st Qu.   Median     Mean  3rd Qu.     Max. 
#>  0.09961  0.81938  1.14818  1.30126  1.60919 14.82229 
exp(log(1.3) - 0.5^2/2) # ~ median
#> [1] 1.147246