Hi Fernando,

your "poolaccum" class is a list. You can access each element using either
[[ or $ (object$listName). In your case, that would be estimator$jack1. If
you want the mean by rows, you can do

apply(X = estimator$jack1, MARGIN = 1, FUN = mean)

or if you want standard deviation

apply(X = estimator$jack1, MARGIN = 1, FUN = sd)

Someone more knowledgeable will have to weigh in on the ACE/ICE estimators.

Cheers,
Roman



On Fri, Mar 25, 2011 at 5:34 PM, Fernando Rodrigues da Silva <
bigos...@yahoo.com.br> wrote:

> Hello everyone,
>
> I get two questions about richness estimators ..
>
> When I use the command below poolaccum from library (vegan) I have the
> following
> result
>
> estimator <- poolaccum (est, permutations = 100, minsize = 1)
> summary (estimator, display = "jack1")
>
> N Jackknife 1   2.5%      97.5%       Std.Dev
> 1 5.210000 2.0000000 8.525000 1.79952294
> 2 9.600000 4.2125000 14.500000 2.65622958
> 3 12.116667 6.6666667 17.508333 2.83689616
> 4 13.607500 8.5000000 18.250000 2.86595635
> 5 14.100000 9.6000000 18.600000 2.62628516
>  6 14.751667 9.8333333 18.166667 2.34706099
> 7 15.408571 10.7142857 18.285714 2.11297296
> 8 15.540000 11.7500000 19.250000 2.10607886
> 9 15.766667 12.3111111 18.444444 1.80268052
> 10 15.974000 12.9000000 18.500000 1.40105444
> 11 16.198182 13.3409091 19.022727 1.36031920
> 12 16.089167 14.8333333 17.666667 0.93069726
> 13 16.012308 14.8461538 17.692308 0.72956962
> 14 15.857143 15.8571429 15.857143 0.00000000
>
> 1) I would like to know which command I have to use to get the mean and
> standard deviation ... What command I use to use these data as vectors
> separately ..
>
> 2) For the ACE and ICE estimators they consider the abundance of 10
> individuals
> or incidence in 10 samples as being rare, I wonder if anyone
> know how to change this value.
>
> Thank you for your attention.
>
> Best regards,
>
>
> FERNANDO RODRIGUES DA SILVA
> =======================================================
>
> Doutor em Biologia Animal
>
> Lab. de Ecologia Animal, UNESP - São José do Rio Preto - Cep 15054-000
>
> Celular:(17) 8126-4085 & (17) 9774-3163
>
> MSN:  bigos...@hotmail.com       Skype: presidentedalaponia
>
> Lattes:
> http://buscatextual.cnpq.br/buscatextual/visualizacv.jsp?id=K4777878T8
>
> ------------------------------------------------------------------------------------------------------------------------
>
>
>
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>
>
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>


-- 
In God we trust, all others bring data.

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