Stefan,
do:
he->Draw("ie1:ie2>>h1(512,0,0,512)","","colz")
Rene Brun
On Thu, 28 Feb 2002, Stefan Iulian wrote:
> Hi,
>
> I compiled root v3.03.02 for linux - Mandrake 8.1.
>
> If I do:
>
> root [0] TFile f("22mev.root")
> root [1] TTree *he=(TTree *)f->Get("h1")
> root [2] c1=new TCanvas
> (class TCanvas*)0x8cb5c78
> root [3] gStyle->SetPalette(1,0)
> root [4] gPad
> (class TCanvas*)0x8cb5c78
> root [5] gPad->SetLogz()
> root [6] f.GetSize()
> (const Seek_t)332606934
> root [7] he->Draw("ie1:ie2","","colz") // works
> (Int_t)3156578
> root [8] he->Draw("ie1:ie2>>h1(512,,,512)","","colz")
> (Int_t)(-1) //?!
> root [10] he->GetEntries()
>
> *** Break *** segmentation violation
>
> root [11] TTree *he=(TTree *)f->Get("h1")
> root [12] he->GetEntries()
> Error: Symbol nan is not defined in current scope
> FILE: LINE:0
> Warning: Unknown type 'unknown' in function argument
> handled as int FILE:_iostream LINE:63
> (const Double_t)nan
> *** Interpreter error recovered ***
>
> root [13] he->Draw("ie1:ie2","","colz")
> Error: reference type x with no initialization
> FILE:_iostream LINE:63
> (Int_t)3156578
> *** Interpreter error recovered ***
>
> root [14] he->Draw("ie1:ie2>>h1(512,,,512)","","colz")
> Error: reference type x with no initialization
> FILE:_iostream LINE:63
> (Int_t)(-1)
>
>
> What I do wrong?
>
> Iulian
>
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