Re: [Boost-users] accumulator extended quantil value

Subject: Re: [Boost-users] accumulator extended quantil value
From: Philipp Kraus (philipp.kraus_at_[hidden])
Date: 2013-06-16 22:28:22

On 2013-06-14 17:24:40 +0200, Philipp Kraus said:

> Hello,
> 
> I have got created an extended_p_square_quantile into an accumulator, 
> with 3 quantils (0.25, 0.5, 0.75) as a boost::array.
> How can I get access to the quantil values of the accumulator? For the 
> variance I use accumulator::variance(myacc), but a call with
> quantil(myacc, 0.5) does not work. 

I use for reading the quantil value
namespace bac = boost::accumulator

bac::quantil( myvar, bac::quantile_probability = 0.5)

but the value is very different of the median. If I run median & 0.5 
quantil, the median results eg 930.67932 and the quantil
value is 0. So I can not explain this large difference. My accumulator 
uses median & 0.5 quantil, so the accumulator
is used equal data.

Can anybody help me please to fix this problem?

Phil