Re: [ROOT] Problem with TF1

From: Rene Brun (Rene.Brun@cern.ch)
Date: Tue Aug 13 2002 - 14:46:54 MEST


Hi,

see new lines below:

Rene Brun

On Tue, 13 Aug 2002, Takefumi SORA wrote:

> Hi,
> 
> As for the mail I sent before, I have a trouble.
> 
>   TH1F *hnew = new TH1F("hnew","hnew",100,0,1000);
> 
>   Int_t  N_entry = tree->GetEntries();
>   Float_t ThresholdEntry = N_entry*0.005;
>   Int_t i;
>   Int_t number=0;
>   for(i=100,number<ThresholdEntry,i++){
    char cut[2];  <========
    sprintf(cut(,"ch0 > %d",i); //<===========
>   tree->Draw("ch0 >> hnew", cut ); //<=============
>   number = hnew->GetEntries();
>   }
> 
> Error message :  Unknown name : "i"
> What should I do to compare Leaf with a variable ?
> 
> 
> -- 
> Takefumi SORA <tak-sora@bg7.so-net.ne.jp>
> 



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