I am not sure to understand your request. I assume that you want to use the option "e2" for drawing error bars. I suggest to keep the marker style=1 and set the histogram fillcolor to 1,2,etc. If this does not work, please send a short script explaining your problem and request. Rene Brun zaldy wrote: > > Dear Rooters, > > I just wanted to draw a point from the TH1F object. > I want it to be a box such that the error bars represents the width and > length of the box. This is very helpful if we want to compare a MonteCarlo > Data and a true data. > > I tried something like this: > > TH1F * h = new TH1F(....); > ..... > fill the histogram > ...... > h->SetMarkerStyle(25); > h->Draw("e2"); > > There is actually a box on a coordinate but it does not represent the > errors of the histogram. SO if I want to have a logscale(X or Y), the box > does not response to the logscale. > > Can you suggest how to do it? > > Thanks. > > -- > > -------------------------------------------------------- > Zaldy A. Nawang > PS Users Room 2 > Yon Gokan, > E362, Neutrino Group, > IPNS, KEK, > Japan > > e-mail: zaldy@neutrino.kek.jp > Tel. No. : (81) 029864 - 5387 > --------------------------------------------------------
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