Can someone help me to modified this code to have 4 histograms in one sheet
i did , and i got this
So, I have TO have four Histograms in each canvas
Adc0 and Adc1 left&Right
Tdc0 and Tdc 1 Left& right
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Adc8 and Adc9 Left& right
Tdc8 and Tdc9 Left&right
{
TFile *f = TFile::Open(“MyData.root”, “RECREATE”);
TTree *t = new TTree(“t”, “My Data tree”);
t->ReadFile(“MyData.txt”, “tdc[10]/s:adc[10]/s”);
TH1F *h_tdc = new TH1F(“h_tdc”, “TDC histogram;tdc value;counts”,
4096, 0, 4096);
TH1F h_adc = new TH1F(“h_adc”, “ADC histogram;adc value;counts”,
4096, 0, 4096);
#if 1 / 0 or 1 /
t->Project(“h_tdc”, “tdc”);
t->Project(“h_adc”, “adc”);
#else / 0 or 1 /
t->Draw(“tdc >> h_tdc”, “”, “goff”);
t->Draw(“adc >> h_adc”, “”, “goff”);
#endif / 0 or 1 */
f->Write();
TCanvas *c = new TCanvas(“c”, “c”);
c->Divide(2, 2);
c->cd(1);
gPad->SetLogy(1);
h_tdc->Draw();
c->cd(2);
gPad->SetLogy(1);
h_adc->Draw();
c->cd(0);
