Re: st: Box and whiskers graph

[Ted Anagnoson <anag999@silcom.com>]

The adjacent values separate the outliers from the rest of the data.  They 
are the 25th or 75th percentiles plus 1.5 times the Inter-Quartlile range, 
which is the distance between the 25th and 75th percentiles.  However, the 
adjacent value indicated on the graph, by convention, is "rolled back" to 
an actual data point, so that there is always real data underneath the 
adjacent value.

So the adjacent values are not actually percentiles....but "adjust" to the 
characteristics of the data.

Ted Anagnoson
California State University Los Angeles



At 10:46 PM 7/5/04 +0200, you wrote:

> The box and whiskers graph illustrates the median value (with a line), the 
> 25%
> and 75% centiles (with a box) and the adjacent values (with the whiskers) ...
> but what are the adjacent values? 2� and 97� centiles or ... ???
> --
> S�ren O'Neill, kiropraktor
> soren.oneill@mail.dk
> tel. 6362 1906
>
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