Hi,

Some say that it is [0.9*len(values)]+1. I think the difference is probably not 
that critical. What would be good to know is how JMeter itself arrives at the 
value.

A good text on the subject's on Wikipedia. 
(http://en.wikipedia.org/wiki/Percentile)

Regards
Oliver

-----Original Message-----
From: Ronan Klyne [mailto:[EMAIL PROTECTED] 
Sent: Thursday, 7 August 2008 2:50 a.m.
To: JMeter Users List
Subject: Re: Again about 90% line calculations

Andrew Melnyk wrote:
> Hi gentleman,
> 
> There were a lot of discussion about the meaning of 90% line property of
> Aggregate graph.
> I would like to know the exact formula which used to count this value.

You get your values sorted in an array (called, say, 'values').

The 90th percentile is then values[0.9*len(values)]


        # r

-- 
Ronan Klyne
Business Collaborator Developer
Tel: +44 01189 028518
[EMAIL PROTECTED]
www.groupbc.com

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