Re: [ROOT] choosing contour level

From: Olivier Couet (Olivier.Couet@cern.ch)
Date: Thu Jun 12 2003 - 16:26:53 MEST


Hi Boris,

 Just put the levels in incresing order:

 Double_t   level[3]={0.1,0.5,0.98}; 

 Cheers,        Olivier


On Thu, 12 Jun 2003, Boris Tuchming wrote:

> Hi,
> I am using root  3.05/02  on linux
> I am having troubles when choosing the contour levels for a 2d histogram 
> or function.
> I have summarized the problem by the following macro
> 
> {
> TF2* f2=new TF2("f2","exp(-x*x/2)*exp(-y*y/2)",-5,5,-5,5);
> Double_t   level[3]={0.98,0.5,0.1};
> f2->SetContour(3,level);
> f2->Draw("cont");
> }
> 
> by doing this,
> I do not get the levels that I would like (in this example 0.98, 0.5 and 
> 0.1)).
> I guess I am doing something wrong but I can not figure out what.
> Can any one help me ?
> 
> Many thanks
> Boris
> 
> 
> 
> 

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