lnorm_mean: Functions to convert parameters of a log-normal distribution...

In mattansb/MSBMisc: Some functions I wrote that I find useful

Functions to convert parameters of a log-normal distribution to meaningfull values on the response scale.

Description

Functions to convert parameters of a log-normal distribution to meaningfull values on the response scale.

Usage

lnorm_mean(meanlog, sdlog, ...)

lnorm_median(meanlog, ...)

lnorm_var(meanlog, sdlog, ...)

lnorm_sd(meanlog, sdlog, ...)

Arguments

meanlog, sdlog	mean and standard deviation of the distribution on the log scale with default values of 0 and 1 respectively.
...	Not used

Examples

x <- rlnorm(1e4, meanlog = 1.5, sdlog = 1.2)

m <- lm(log(x) ~ 1)

meanlog <- coef(m)
sdlog <- sigma(m)

lnorm_mean(meanlog, sdlog)
mean(x)

lnorm_median(meanlog, sdlog)
median(x)

lnorm_sd(meanlog, sdlog)
sd(x)

mattansb/MSBMisc documentation built on March 22, 2023, 6:02 p.m.