Hi ROOT team, I seem not to be able to remove the last point of a TGraph(Errors) in a systematic way using RemovePoint(i): The attached macro shows the case ... root [19] .x /home/enterria/removeLastPoints.C(1) x[0]=5, y[0]=5, ex[0]=0.01, ey[0]=0 x[1]=7, y[1]=7, ex[1]=0.02, ey[1]=0 x[2]=9, y[2]=10, ex[2]=0.02, ey[2]=0 x[3]=13, y[3]=14, ex[3]=0.01, ey[3]=0 x[4]=15, y[4]=16, ex[4]=0.01, ey[4]=0 <I> Removing point 4 of the graph // <--- here it works as expected ... x[0]=5, y[0]=5, ex[0]=0.01, ey[0]=0 x[1]=7, y[1]=7, ex[1]=0.02, ey[1]=0 x[2]=9, y[2]=10, ex[2]=0.02, ey[2]=0 x[3]=13, y[3]=14, ex[3]=0.01, ey[3]=0 root [20] .x /home/enterria/removeLastPoints.C(2) x[0]=5, y[0]=5, ex[0]=0.01, ey[0]=0 x[1]=7, y[1]=7, ex[1]=0.02, ey[1]=0 x[2]=9, y[2]=10, ex[2]=0.02, ey[2]=0 x[3]=13, y[3]=14, ex[3]=0.01, ey[3]=0 x[4]=15, y[4]=16, ex[4]=0.01, ey[4]=0 <I> Removing point 3 of the graph // <-- what about point 4 ? x[0]=5, y[0]=5, ex[0]=0.01, ey[0]=0 x[1]=7, y[1]=7, ex[1]=0.02, ey[1]=0 x[2]=9, y[2]=10, ex[2]=0.02, ey[2]=0 x[3]=15, y[3]=16, ex[3]=0.01, ey[3]=0 Is this the expected behaviour of the function or I'm missing something here ? Thanks in advance, -- David D'ENTERRIA PostDoctoral Research Scientist Nevis Labs http://www.nevis.columbia.edu/~denterria Columbia University, NY mailto:denterria@nevis.columbia.edu - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - PHENIX Group (Bldg 510C) tel: +1 631 344 7053 Brookhaven National Lab, Upton, NY 11973 fax: +1 631 344 3253 http://www.phenix.bnl.gov/~enterria mailto:denterri@bnl.gov ---------------------------------------------------------------------
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