[R] Calculating percentiles for multiple dates

arun smartpink111 at yahoo.com
Mon Jul 30 21:43:31 CEST 2012


If you look at the output from the given data, the lwr and upr is constant for a particular date.  So, I guess you can use that value as the percentile.  I assume that your statement of grouping all of one date together so as to average out the observations.  In that case, there will be only a single observation per date.

----- Original Message -----
From: guzzom <mattguzzo12 at gmail.com>
To: r-help at r-project.org
Sent: Monday, July 30, 2012 12:35 PM
Subject: Re: [R] Calculating percentiles for multiple dates

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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