Re: skewness or kurtosis ?

Hi Nick,

We may consider adding a TMath::CentralMoment function, but we will keep TH1 as it is now with the 4 functions GetMean,GetRMS,GetSkewness and GetKurtosis.

Rene Brun

On Tue, 26 Apr
2005, Nick van Eijndhoven wrote:

> Hi Rene,
> What about introducing a more general faility
> GetCentralMoment(n) to return the n-th central moment ?
> In such a way one directly covers the mean, variance,
> skewness, kurtosis etc....
>
> Cheers,
> Nick.
>
> ----- Original Message -----
> From: "Rene Brun" <brun_at_pcroot.cern.ch>
> To: "Damir Buskulic" <buskulic_at_lapp.in2p3.fr>
> Cc: <Anna.Krechtchouk_at_cern.ch>; <roottalk_at_pcroot.cern.ch>
> Sent: Tuesday, April 26, 2005 3:19 PM
> Subject: Re: [ROOT] skewness or kurtosis ?
>
>
> > Hi Damir,
> >
> > Thanks to Anna Kreshuk for implementing your requested functions.
> > They are now in CVS head. see:
> > http://root.cern.ch/root/htmldoc/TH1.html#TH1:GetSkewness
> > http://root.cern.ch/root/htmldoc/TH1.html#TH1:GetKurtosis
> >
> > Rene Brun
> >
> > On Mon,
> > 25 Apr 2005, Damir Buskulic wrote:
> >
> > > Hi,
> > >
> > > Is there a method in TH1 (for instance) that calculates the skewness
> > > and/or kurtosis of a given distribution ?
> > >
> > > Cheers
> > >
> > > Damir
> > >
> > > ====================================
> > > Damir Buskulic, Universite de Savoie/LAPP
> > > Chemin de Bellevue, B.P. 110, F-74941 Annecy-le-Vieux Cedex, FRANCE
> > > Tel : +33 (0)450091600
> > > e-mail: buskulic_at_lapp.in2p3.fr
> > > ====================================
> > >
> >
>
Received on Wed Apr 27 2005 - 09:38:12 MEST