Re: [ROOT] choosing contour level

From: Boris Tuchming (tuchming@cea.fr)
Date: Thu Jun 12 2003 - 16:41:53 MEST


Hi Olivier,
thank you for your answer but  I still get the same results (the level 
drawn by root are at 0.33 and 0.66)
Boris

Olivier Couet wrote:

>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};q
>>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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