Hello Zhou Zhang, En/Na Zhou Zhang ha escrit: > I am trying to locate some information in a histgram. But I don't know > if there is a command "locator" like in the PAW environment. > Who knows how to "locate" the information in the histogram? You have to activate the "Event Status" in the "Options" menu of your canvas. When you then point with your arrow mouse wherever in the canvas you got the coordinates in the canvas' bottom part. If you want to permanently activate "Event Status" do: Canvas.ShowEventStatus true in your .rootrc file. Regards, David d'Enterria ¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬ Groupe Photons Subatech http://www-subatech.in2p3.fr/~photons/subatech/ mailto:enterria@in2p3.fr phone: +33.2.51.85.85.60 ¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬¬ Grup Física Radiacions UAB http://cc.uab.es/~iffr2/ mailto:d.enterria@cc.uab.es phone: +3493.581.13.64 "In science, there is only physics; all the rest is stamp collecting", Ernest Rutherford
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