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Random Variable From a Lognormal Distribution

Source: R/rlnorm_rs.R
rlnorm_rs.Rd

Generate random numbers from a lognormal distribution, rescaled to have user-specified population mean and standard deviation.

Usage

rlnorm_rs(n = 10, mui = 0, sigma = 1, rev = FALSE, pmean = 0, psd = 1)

Arguments

n

The number of random numbers to generate.

mui

The parameter mui to be used by stats::rlnorm().

sigma

The parameter sigma to be used by stats::rlnorm().

rev

If TRUE, the distribution is revered to generate a negatively skewed distribution. Default is FALSE.

pmean

Population mean.

psd

Population standard deviation.

Value

A vector of the generated random numbers.

Details

First, specify the parameter, mui and sigma, and the desired population mean and standard deviation. The random numbers, drawn from a lognormal distribution by stats::rlnorm(), will then be rescaled with the desired population mean and standard.

Examples

set.seed(90870962)
x <- rlnorm_rs(n = 5000,
               mui = 0,
               sigma = 1,
               pmean = 0,
               psd = 1)
mean(x)
#> [1] -0.005312214
sd(x)
#> [1] 0.9400859
hist(x)