Hi,Philip,
You can also define a char array like this:
const int nfile = 6;
char *file[nfile] = {
"/nfs/farm/babar/AWG11/Charmonium/Etac/ntp13/good_1999-b1-s0-r10B-on_all_1.root",
"/nfs/farm/babar/AWG11/Charmonium/Etac/ntp13/good_1999-b1-s0-r10B-on_all_2.root",
"/nfs/farm/babar/AWG11/Charmonium/Etac/ntp13/good_1999-b1-s0-r10B-on_all_3.root",
"/nfs/farm/babar/AWG11/Charmonium/Etac/ntp13/good_1999-b1-s0-r10B-on_all_4.root",
"/nfs/farm/babar/AWG11/Charmonium/Etac/ntp13/good_1999-b1-s0-r10B-on_all_5.root",
"/nfs/farm/babar/AWG11/Charmonium/Etac/ntp13/good_1999-b1-s0-r10B-on_all_6.root"
}
//And then you open them as blow,
for(Int_t k = 0; k < nfile ; k++) { TFile *fp = new TFile(file[k]);
{
}//end of your task task
delete fp;
}//end of files open
Yunhua Cheng
On Sat, 7 Sep 2002, Rene Brun wrote:
> Hi Philip,
>
> In addition to the solution to use the concatenation of TString, note that
> you can also use wilcarding to create a TChain, eg
> TChain run1("h45");
> run1.Add("/nfs/farm/babar/AWG11/Charmonium/Etac/ntp13/good_1999-b1-s0-r10B-on_all_*.root")
> run1.Add("/nfs/farm/babar/AWG11/Charmonium/Etac/ntp13/good_2000-b1-s0-r10B-on_all_*.root")
>
> Rene Brun
>
> On Fri, 6 Sep 2002, Philip Clark wrote:
>
> >
> > Hi Everyone,
> >
> > Currently, I am trying to loop over files and make chains. In PAW I would do:-
> >
> > MACRO run1
> > do i=1,12
> > chain run1 good_1999-b1-s0-r10B-on_all_[i].hbook
> > enddo
> > do i=1,57
> > chain run1 good_2000-b1-s0-r10B-on_all_[i].hbook
> > enddo
> > etc
> >
> > I root I am trying to do something like
> >
> > TChain run1("h45");
> > for (Int_t i=1; i<13, i++)
> > {
> > run1.Add("/nfs/farm/babar/AWG11/Charmonium/Etac/ntp13/good_1999-b1-s0-r10B-on_all_[i].root");
> > }
> > for (Int_t i=1; i<58, i++)
> > {
> > run1.Add("/nfs/farm/babar/AWG11/Charmonium/Etac/ntp13/good_2000-b1-s0-r10B-on_all_[i].root");
> > }
> >
> > Obviously [i] wont work here... Any ideas instead? I need to loop over
> > several thousand files in this manner. So a better solution would help a
> > lot.
> >
> > Also a way to substitute the path
> > /nfs/farm/babar/AWG11/Charmonium/Etac/ntp13/
> > which is the same all the time would be good as well.
> >
> > Thanks
> >
> > -Phil
> >
> > --
> > Philip J. Clark MS41 (Bristol), SLAC
> > tel: 1-650-926-3761 Stanford University
> > fax: 1-650-926-3767 P.O. Box 20450
> > pclark@slac.stanford.edu Stanford, California 94309
> >
>
--
**************************************************************************
* 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. *****
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* ZIP code: 430079 Tel: 027-87673314(O) 027-87340256(D) *****
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* E-mail: chengyh@iopp.ccnu.edu.cn chengyunhua11@263.net ***
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