Hi Carmine, Unfortunately you do not indicate which version you are using. It looks like you use an old version. This problem with the number of cuts was fixed several months ago. Rene Brun On Fri, 27 Sep 2002, Carmine Elvezio Pagliarone, CDF wrote: > Hallo, > > > I'm getting this kind of error message running Root: > > Error in <TObjArray::At>: index 19 out of bounds (size: 16, this: 0x11f97590) > Error in <TObjArray::At>: index 16 out of bounds (size: 16, this: 0x11f97590) > Error in <TObjArray::At>: index 19 out of bounds (size: 16, this: 0x11f97590) > Error in <TObjArray::At>: index 16 out of bounds (size: 16, this: 0x11f97590) > Error in <TObjArray::At>: index 19 out of bounds (size: 16, this: 0x11f97590) > > I believe that is some how connected with the number of cuts I apply in my > macro. Infact If I try to reduce the number of selection cuts > this error message magically disapper > Here it's an example of what I'm doing: > > TCut cta0="nMUO>1"; > TCut cta1="abs(Zvtx)<60."; > TCut cta2="(abs(MUO.trk.D0[0])<0.6)&&(abs(MUO.trk.D0[1])<0.6)"; > TCut cta3="(MUO.Pt[0]>=1.5)"; > TCut cta4="(abs(MUO.dx[0]) < 12.)&&(abs(MUO.dx[1])<12.)"; > TCut cta5="(MUO.R4Et[0]<2.0)&&(MUO.R4Et[1]<2.0)"; > TCut cta6="(MUO.hdEt[0]<6.)&&(MUO.hdEt[1]<6.)&&(MUO.emEt[0]<2.)&&(MUO.emEt[1]<2.)"; > TCut cta7="abs(MUO.trk.Z0[0]-MUO.trk.Z0[1])<5."; > // > TCut ctb0="(MUO.trk.Charge[0]*MUO.trk.Charge[1])<0."; > TCut ctb1="mZ0mu>2.896"; > TCut ctb2="mZ0mu<3.296"; > // > // > TCut cuta=cta0&&cta1&&cta2&&cta3&&cta4&&cta5&&cta6&&cta7; > TCut cutb=ctb0&&ctb1&&ctb2; > TCut CUT=cuta&&cutb; > > and so on... > > As you can see it's not a really big ammounts of cuts but on the other > hand I need to apply more. Is there a way to do that without having > troubles ? How can I fix this problem ? > Thank you so much for you help ! > > Carmine (CDF) > > >
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