Hi Mina, If you want to plot several TGraph (TGraphErrors) on the same pad, I encourage you to use the class TMultiGraph. The scale is automatically computed for all the graphs member of a TMultiGraph. Rene Brun On Mon, 19 Mar 2001, Mina Nozar wrote: > Hi all, > > I am trying to plot three graphs on the same axis (i.e. same axis > setting). When I draw the first set of points, root sets the axis range > so that all points show on the graph (which is fine), but once I draw > the second set of points on the same graph, some of the points are "not > visible" since they are "out of range". I can't set the y-axis setting > by doing the following: > > gr = new TGraphErrors(n,m,y1,em,ey1); > gr->GetYaxis()->SetRange(0,105000); > > For some reason, I can't reset the axis, using the GUI (Range) either. > Well, I can change the numbers, but once I close the window, nothing > happens and when I redraw the graph, the > axis range is the same as before. > > Is there a way I can set the y-axis range to what I want? > > Thanks, > mina > > -- > Mina Nozar > nozarm@jlab.org ----- Phone:(757)269-6391 ----- FAX:(757)269-5800 > Thomas Jefferson National Accelerator Facility > MS 12H, 12000 Jefferson Ave. Newport News, VA 23606 > > >
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