Hi:

When the question is: 'Are there any functions in R for <pick your topic>?',
package sos is a good place to start:

library(sos)     # install if necessary
findFn('MMeans')

Well actually, MMMeans and MMruns came up dry, but Michaelis-Menten is a
commonly occurring model in the biosciences:

findFn('Michaelis-Menten')

came up with 37 hits. Since the first two came up dry, perhaps the experts
in sig-ecology can point you to something more specific, as Gavin Simpson
adroitly mentioned.

HTH,
Dennis

On Wed, Dec 1, 2010 at 5:23 AM, yangwenjing <yangwenjing@ibcas.ac.cn> wrote:

> Dear everyone,
>
> I am doing some work about species richness estimation. Nonparametric
> estimation (such as Chao1, Jacknife1) can be done just using function
> "specpool()" and "estimateR()" in package "vegan". The problem is that I can
> not found any functions for parametric estimation (such as MMMeans, MMruns,
> Michaelis-Menten). Do you know any function for doing this? Thanks a lot.
>
> Best wishes,
>
> Wenjing
>
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