Hi Cheng, I cannot understand this warning. The current version of TProfile is 3. Did you modify this class ? Could you send me your file ptmean.root (or tell me how to access it on AFS or a web server) ? Rene Brun On Thu, 10 Oct 2002, Cheng Yunhua wrote: > > hi, > My ROOT version infor is------> > QAInfo:You are using STAR_LEVEL : new, ROOT_LEVEL : 3.02.07 > > now,I am confronted with a strange problem as blow, > I drew some TProfiles and saved them in a root file.But every time I > open it using TFile,there would be a warning like this-----> > > WARNING, the StreamerInfo of class TProfile read from file > /direct/star+u/chengyh/centrality/analysis/result/MC_Tree/5/ptmean.root > has the same version (=3) as the active class > but a different checksum. > You should update the version to ClassDef(TProfile,4). > Do not try to write objects with the current class definition, > the files will not be readable. > > > When I list them and draw one TProfile,it works,but when I draw > one more TProfile under the same ROOT session,it fails and gives infor > as below---> > > *** Break *** segmentation violation > Root > Function meanptvscent() busy flag cleared > > and then stops. > > I don't know why,but I guess it is because that the Nents of those > TProfile are very huge.Because I must draw these TProfiles one time, > but it always fails,how can I do then? > > You can have a look my macro for drawing,I have inclosed it to you. > > > > > > > > > -- > Best regards! > Cheng Yunhua > ************************************************************************** > * Name: Cheng Yunhua Major: high energe experiment physics *** > *--------------------------------------------------------------------** > * Department:Institute of particle physics,Huazhong Normal University*** > *--------------------------------------------------------------------**** > * Adress: Institute of particle physics,CCNU,Wuhan,Hubei,PRC. ***** > *--------------------------------------------------------------------****** > * ZIP code: 430079 Tel: 027-87673314(O) 027-87340256(D) ***** > *--------------------------------------------------------------------**** > * E-mail: chengyh@iopp.ccnu.edu.cn chengyunhua11@263.net *** > ************************************************************************** > >
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