Re: histogram (TH1F) fit for unknown distribution pattern

From: Paul Seyfert <Paul.Seyfert_at_cern.ch>
Date: Thu, 20 May 2010 17:50:21 +0200


On 05/20/2010 05:45 PM, Dr Ian Korir wrote:
> ROOTers,
> Have the attached distribution histogram data files generated by root*
> and want to fit them but none of the predefined types seems to match the
> distribution pattern.
>
> Question 1: Can one tell me what kind of distribution they are? (E.g.
> c1.C is approx. Gaussian but fail in the tails)

from looking at it, I would try:
c1: poisson
c2: lorentz or voigt

> Question 2: Template for
> fitting the two histograms (most probably a user-defined functions)

sorry, have non of them at hand.

>
> *Uses root version 5.26/00 under OS SL52 environment (64Bit Quad)
> Regards, Ian
Received on Thu May 20 2010 - 17:50:39 CEST

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