How might i draw a histogram consisting of different color dots

f3->cd(); // "switch" to "f3" for writing h3->Write(); h4->Write(); h5->Write(); delete f3; // automatically deletes all histograms which it "owns"

Thanks Pepe,
Ok. the hb_all histogram have been written. But there is no colour, that is, all of bins in hb_all are shown as default option for colours. What is it matter ?

Cheers,
Ersel

OK everything is well done. :smiley: