On 8/26/06, Mike Nielsen <[EMAIL PROTECTED]> wrote:
> Yes.
>
> > Can R compute the expected value of a random variable?
Mike: thank you very much indeed for your so insightful and complete
answer. I have meanwhile deepened my research and, as a consequence,
I have found the following solution, which seems to work fine:
> integrand <- function(x){x*dlnorm(x,meanlog=2,sdlog=3)}
> integrate(integrand,-Inf, Inf)
665.146 with absolute error < 0.046
>
There is also a package apt to calculate expected values: it is called
distrEx. (Thanks, Matthias.)
Paul
______________________________________________
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
