Rui,

You made that WAY too easy!

Thanks so much,

Matt Guzzo

On Mon, Jul 30, 2012 at 6:45 PM, Rui Barradas [via R] <
ml-node+s789695n4638471h82@n4.nabble.com> wrote:

> Hello,
>
> Sorry for my earlier post, they show the problem of not providing
> context. Fortunatelly, arun's post made me realize there was some data
> posted somwhere after all. So, try this:
>
> aggregate(DEPTH ~ LOG_DATE, data = dat1, quantile, probs = c(0.025,
> 0.975))
>    LOG_DATE DEPTH.2.5% DEPTH.97.5%
> 1    37757   0.635225    5.042800
> 2    37758   0.299250    2.870000
>
>
> Hope this helps,
>
> Rui Barradas
>
> Em 30-07-2012 17:35, guzzom escreveu:
>
> > I was hoping to calculate the percentile for each date. So group all of
> one
> > date together, calculating the value of the 2.5 and 97.5 percentile.
> >
> >
> >
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