Re: [R] generating random numbers from the logit-normal distribution ?

From: <francoisromain_at_free.fr>
Date: Fri 27 Jan 2006 - 18:40:21 EST

Selon Taka Matzmoto <sell_mirage_ne@hotmail.com>:

> Hi R users
>
> I like to generate random numbers from the logit-normal distribution.
>
> Are there available simple commands I can use?
>
> I used to generate using
>
> exp(rnorm(1000,0,1))/(1+exp(rnorm(1000,0,1)))

> I am looking for a simple command such as rnorm().
>
> Thanks in advance
>
> TM
Hi,

Consider writing a function, you can even learn how to use ...

rlogitnormal <- function(...){
  x <- exp(rnorm(...))
  x / (1+x)
}

then

rlogitnormal(1000, 0, 1)

Romain



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