Re: [Boost-users] [accumulators] density histogram, what is typical way of using it?

Subject: Re: [Boost-users] [accumulators] density histogram, what is typical way of using it?
From: Karsten Ahnert (karsten.ahnert_at_[hidden])
Date: 2010-07-20 11:35:53

> For example, it seems to determine de bins from the first N samples
> accumulated. what if you pass less elements than this. Are the bins
> completely fixed after that?
> What was the logic behind that design rather than, for example, to
> somehow declared uniform bins in a range?
> 
> What if I have to define uniform equispaced bins, do I pass a uniform
> sequence at the beginning? but then those elements will be counted?
> 
I would like to define uniform bins too, but If i read the source
correctly this is not possible at the moment. Maybe I will write a such
a density estimator once.

> How the counters or probabilities are accessed at the end? What else
> can be done with the density accumulator object, can the cummulative
> or the inverse pdf be accessed easily within the library. Can it be
> plugged in into a random number generator as a distribution function.

If values are found which lie outside the histogramm they are sorted
into the first of the last bin.