Please read tips for efficient and successful posting and posting code ROOT Version: 6.18.00 Platform: Ubuntu 18.04.5 LTS Compiler: Not Provided Good evening! I’m run a code and save histogram generate in root file and txt, but I’m doing some wrong, because what appears in the txt is: TH1…

Hi, There is no plain text storage for histogram. But you can try json format - doing SaveAs(“example.json”); Probably it will fit your needs. Regards, Sergey

Thanks @linev ! I see that in root5 there was some eample of macro to convert root in txt file. I think applied this but when I do some errors appears? Have you or anyone show me an example in root 6.18.00? Best Regards!

If you have ROOT5 macro, it should also work with ROOT6. You probably can just loop over histogram bins and create text file yourself.

@linev I use this code: void dumpHistoToTxt() { TFile *f=new TFile("SPEC_TotalFotoes1.root"); // opens the root file TH1F * tr=(TH1F *)f->Get("SPEC_TotalFotoes1"); float ener,value; ofstream myfile; myfile.open ("testeFotoes1.txt"); myfile << "ener value\n"; for (int idx=0; idx<tr->GetNbinsX();+…

I find out in other question here, this line of command that provide something: .> values.txt values->Print("all"); .> This give me: fSumw[0]=0, x=-6.5e-06 fSumw[1]=0, x=6.5e-06 fSumw[2]=0, x=1.95e-05 fSumw[3]=0, x=3.25e-05 fSumw[4]=0, x=4.55e-05 fSumw[5]=0, x=5.85e-05 fSumw[6]=0, x=7.15e-…

TH1F *tr; f->GetObject("values", tr);

Thanks for the repllied @Wile_E_Coyote ! I substitued the TH1F * tr=(TH1F *)f->Get("SPEC_TotalFotoes1"); to TH1F *tr; f->GetObject("values", tr); This give me: 0.0001105 0.0001105 0.0001235 0.0001235 0.0001365 0.0001365 0.0001495 0.0001495 0.0001625 0.0001625 0.0001755 0.0001755 But my Y …

Sorry, I cannot identify place where you make printout. But seems to be you just print GetBinCenter value twice

Thanks, @linev for the repllied. I notice that in the code that I use was place the BinCenter twice. When I fixed this, was correct now. Thanks all for the help. One doubt more: It’s possible to add a third column that will represent the normalize integral to 1? Best Regards

You can use GetIntegral method to normalize your values: double integral = tr->ComputeIntegral(); ... ener = tr->GetBinCenter(idx); value = tr->GetBinContent(idx); value_normalized = value / integral;

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