Re: Re: Names of histograms reset after TFileMerger from Yaxian Mao on 2008-06-23 (RootTalk)

From: Yaxian Mao <maoyx_at_iopp.ccnu.edu.cn>
Date: Mon, 23 Jun 2008 23:48:05 +0800

Hi Rene and Yves,
  If as Yves told me the names of histograms would keep in the trunk of root, in this case we should be able to get the correct merge output with version of trunk, right? But why we still failed?
  So would you mind telling me what should I do to solve this problem since you catch the point? Many thanks!
  Regards,
Yaxian

Rene Brun wrote:
> Yves,
>
> The result is what I expect. Your input file contains 22 keys, all named
> "histosscaled". As a result,
> you have only one key in output also named "histosscaled".
>
> Rene Brun
>
> Yves Schutz wrote:
>> Rene and rooters,
>> I do not know if this problem is related to this new problem.
>> Running the attached macro on the attached file I get the following
>> output: only one entry in the output file after merging. I am using
>> the trunk of root. The problem is the same with v5.19.04...
>>
>>
>> ------------------------------------------------------------------------
>>
>>
>> pb-d-128-141-48-228:ymao schutz$ root mm.C
>> *******************************************
>> * *
>> * W E L C O M E to R O O T *
>> * *
>> * Version 5.19/05 14 May 2008 *
>> * *
>> * You are welcome to visit our Web site *
>> * http://root.cern.ch *
>> * *
>> *******************************************
>>
>> ROOT 5.19/05 (trunk_at_24474, Jun 23 2008, 12:21:37 on macosx64)
>>
>> CINT/ROOT C/C++ Interpreter version 5.16.29, Jan 08, 2008
>> Type ? for help. Commands must be C++ statements.
>> Enclose multiple statements between { }.
>> root [0]
>> Processing mm.C...
>> [TFile::Cp] Total 0.07 MB |====================| 100.00 % [125.0 MB/s]
>> [TFile::Cp] Total 0.09 MB |====================| 100.00 % [237.8 MB/s]
>> [TFile::Cp] Total 0.00 MB |====================| 100.00 % [12.6 MB/s]
>> TFile** file1.root
>> TFile* file1.root
>> KEY: TH2F histosscaled;22 #phi_{#gamma}
>> KEY: TH2F histosscaled;21 #phi_{#gamma}
>> KEY: TH1F histosscaled;20 Number of #gamma over calorimeter
>> KEY: TH2F histosscaled;19 #phi_{#gamma}
>> KEY: TH2F histosscaled;18 #phi_{#gamma}
>> KEY: TH1F histosscaled;17 Number of #gamma over calorimeter
>> KEY: TH2F histosscaled;16 #phi_{#gamma}
>> KEY: TH2F histosscaled;15 #phi_{#gamma}
>> KEY: TH1F histosscaled;14 Number of #gamma over calorimeter
>> KEY: TH2F histosscaled;13 #phi_{#gamma}
>> KEY: TH2F histosscaled;12 #phi_{#gamma}
>> KEY: TH1F histosscaled;11 Number of #gamma over calorimeter
>> KEY: TH2F histosscaled;10 #phi_{#gamma}
>> KEY: TH2F histosscaled;9 #phi_{#gamma}
>> KEY: TH1F histosscaled;8 Number of #gamma over calorimeter
>> KEY: TH2F histosscaled;7 #phi_{#gamma}
>> KEY: TH2F histosscaled;6 #phi_{#gamma}
>> KEY: TH1F histosscaled;5 Number of #gamma over calorimeter
>> KEY: TH2F histosscaled;4 #Sigma p_{T} in cone
>> KEY: TH2F histosscaled;3 #phi_{#gamma}
>> KEY: TH2F histosscaled;2 #phi_{#gamma}
>> KEY: TH1F histosscaled;1 Number of #gamma over calorimeter
>> TFile** mergedOutput.root
>> TFile* mergedOutput.root
>> KEY: TH2F histosscaled;1 #phi_{#gamma}
>> root [1]
>> Le 11 juin 08 � 16:33, Rene Brun a 閏rit :
>>
>>> As already reported to you, I cannot reproduce your problem. See my
>>> previous mail
>>>
>>> Rene Brun
>>>
>>> Yaxian Mao wrote:
>>>> Hi Rene,
>>>> I am sorry to disturb you again. But may I ask how about my problem?
>>>> could you
>>>> reproduce it or not? maybe this is trival for you but it is not
>>>> convenient for me if a
>>>> long time later I don't know exactly what I was plotted on my histogram.
>>>> Thanks for your help!
>>>> Regards,
>>>> Yaxian
>>>>
>>>> Rene Brun wrote:
>>>>
>>>>> Yves,
>>>>>
>>>>> When I run your script I obtain the output below and it is what I
>>>>> expect. What is your version of ROOT?
>>>>>
>>>>> Rene
>>>>>
>>>>> root [1] .x merge.C
>>>>> [TFile::Cp] Total 0.02 MB |====================| 100.00 % [47.9 MB/s]
>>>>> [TFile::Cp] Total 0.02 MB |====================| 100.00 % [54.0 MB/s]
>>>>> [TFile::Cp] Total 0.02 MB |====================| 100.00 % [55.9 MB/s]
>>>>> hPtGammaScaled Number of #gamma over calorimeter
>>>>> hPhiGammaScaled #phi_{#gamma}
>>>>> hEtaGammaScaled #phi_{#gamma}
>>>>> hConePtSumScaled #Sigma p_{T} in cone
>>>>> hPtPromptScaled Number of #gamma over calorimeter
>>>>> hPhiPromptScaled #phi_{#gamma}
>>>>> hEtaPromptScaled #phi_{#gamma}
>>>>> hPtFragmentationScaled Number of #gamma over calorimeter
>>>>> hPhiFragmentationScaled #phi_{#gamma}
>>>>> hEtaFragmentationScaled #phi_{#gamma}
>>>>> hPtPi0DecayScaled Number of #gamma over calorimeter
>>>>> hPhiPi0DecayScaled #phi_{#gamma}
>>>>> hEtaPi0DecayScaled #phi_{#gamma}
>>>>> hPtOtherDecayScaled Number of #gamma over calorimeter
>>>>> hPhiOtherDecayScaled #phi_{#gamma}
>>>>> hEtaOtherDecayScaled #phi_{#gamma}
>>>>> hPtConversionScaled Number of #gamma over calorimeter
>>>>> hPhiConversionScaled #phi_{#gamma}
>>>>> hEtaConversionScaled #phi_{#gamma}
>>>>> hPtUnknownScaled Number of #gamma over calorimeter
>>>>> hPhiUnknownScaled #phi_{#gamma}
>>>>> hEtaUnknownScaled #phi_{#gamma}
>>>>> TFile** mergedOutput.root
>>>>> TFile* mergedOutput.root
>>>>> KEY: TList histosscaled;1 Doubly linked list
>>>>> root [2]
>>>>>
>>>>>
>>>>> Yves Schutz wrote:
>>>>>
>>>>>> Rene,
>>>>>> The wrong macro has been sent to you. What Yaxian wanted to point to
>>>>>> is that the Name of the Merged histograms are not kept.
>>>>>> Just run the following macro. Thanks ... Yves
>>>>>> void merge()
>>>>>> {
>>>>>> TFileMerger m ;
>>>>>> TString outName("mergedOutput.root") ;
>>>>>> m.OutputFile(outName) ;
>>>>>> m.AddFile("histosscaled1.root") ;
>>>>>> m.AddFile("histosscaled2.root") ;
>>>>>> m.Merge() ;
>>>>>> TFile in("histosscaled1.root") ;
>>>>>> TList * l = (TList*)in.Get("histosscaled") ;
>>>>>> for (Int_t index = 0; index < l->GetEntries(); index++)
>>>>>> cout << l->At(index)->GetName() << " " << l->At(index)->GetTitle()
>>>>>> << endl ; ;
>>>>>> TFile out(outName) ;
>>>>>> out.ls() ;
>>>>>> }
>>>>>>
>>>>>> and you get
>>>>>> hPtGammaScaled Number of #gamma over calorimeter
>>>>>> hPhiGammaScaled #phi_{#gamma}
>>>>>> hEtaGammaScaled #phi_{#gamma}
>>>>>> hConePtSumScaled #Sigma p_{T} in cone
>>>>>> hPtPromptScaled Number of #gamma over calorimeter
>>>>>> hPhiPromptScaled #phi_{#gamma}
>>>>>> hEtaPromptScaled #phi_{#gamma}
>>>>>> hPtFragmentationScaled Number of #gamma over calorimeter
>>>>>> hPhiFragmentationScaled #phi_{#gamma}
>>>>>> hEtaFragmentationScaled #phi_{#gamma}
>>>>>> hPtPi0DecayScaled Number of #gamma over calorimeter
>>>>>> hPhiPi0DecayScaled #phi_{#gamma}
>>>>>> hEtaPi0DecayScaled #phi_{#gamma}
>>>>>> hPtOtherDecayScaled Number of #gamma over calorimeter
>>>>>> hPhiOtherDecayScaled #phi_{#gamma}
>>>>>> hEtaOtherDecayScaled #phi_{#gamma}
>>>>>> hPtConversionScaled Number of #gamma over calorimeter
>>>>>> hPhiConversionScaled #phi_{#gamma}
>>>>>> hEtaConversionScaled #phi_{#gamma}
>>>>>> hPtUnknownScaled Number of #gamma over calorimeter
>>>>>> hPhiUnknownScaled #phi_{#gamma}
>>>>>> hEtaUnknownScaled #phi_{#gamma}
>>>>>> TFile** mergedOutput.root
>>>>>> TFile* mergedOutput.root
>>>>>> KEY: TH2F histosscaled;22 #phi_{#gamma}
>>>>>> KEY: TH2F histosscaled;21 #phi_{#gamma}
>>>>>> KEY: TH1F histosscaled;20 Number of #gamma over calorimeter
>>>>>> KEY: TH2F histosscaled;19 #phi_{#gamma}
>>>>>> KEY: TH2F histosscaled;18 #phi_{#gamma}
>>>>>> KEY: TH1F histosscaled;17 Number of #gamma over calorimeter
>>>>>> KEY: TH2F histosscaled;16 #phi_{#gamma}
>>>>>> KEY: TH2F histosscaled;15 #phi_{#gamma}
>>>>>> KEY: TH1F histosscaled;14 Number of #gamma over calorimeter
>>>>>> KEY: TH2F histosscaled;13 #phi_{#gamma}
>>>>>> KEY: TH2F histosscaled;12 #phi_{#gamma}
>>>>>> KEY: TH1F histosscaled;11 Number of #gamma over calorimeter
>>>>>> KEY: TH2F histosscaled;10 #phi_{#gamma}
>>>>>> KEY: TH2F histosscaled;9 #phi_{#gamma}
>>>>>> KEY: TH1F histosscaled;8 Number of #gamma over calorimeter
>>>>>> KEY: TH2F histosscaled;7 #phi_{#gamma}
>>>>>> KEY: TH2F histosscaled;6 #phi_{#gamma}
>>>>>> KEY: TH1F histosscaled;5 Number of #gamma over calorimeter
>>>>>> KEY: TH2F histosscaled;4 #Sigma p_{T} in cone
>>>>>> KEY: TH2F histosscaled;3 #phi_{#gamma}
>>>>>> KEY: TH2F histosscaled;2 #phi_{#gamma}
>>>>>> KEY: TH1F histosscaled;1 Number of #gamma over calorimeter
>>>>>> Le 10 juin 08 � 08:40, Rene Brun a 閏rit :
>>>>>>
>>>>>>
>>>>>>> I do not understand what you are trying to achieve. Your
>>>>>>> histograms are
>>>>>>> correctly merged with the statement
>>>>>>> Bool_t result = m.Merge();
>>>>>>>
>>>>>>> but I have no idea of what you want to do with the code following
>>>>>>> this
>>>>>>> statement.
>>>>>>> Your input files contain a TList of histograms, but you loop on the
>>>>>>> TKeys as if each histogram was a TKey.
>>>>>>>
>>>>>>> Rene Brun
>>>>>>>
>>>>>>> Yaxian Mao wrote:
>>>>>>>
>>>>>>>> Dear Rene and all,
>>>>>>>> I encounterd one problem when I try to merge two different root
>>>>>>>> files by TFileMerger,
>>>>>>>> which never happened before. After merging, all names of histograms
>>>>>>>> in the root file
>>>>>>>> are reseted by itself. I can not understand why, could somebody help
>>>>>>>> me to solve this
>>>>>>>> problem? Thanks very much!
>>>>>>>> My root version is: v5-19-04
>>>>>>>> Best regards,
>>>>>>>> Yaxian
>>>>>>>>
>>>>>>> ============================================
>>>>>>> Yves SCHUTZ (IN2P3-CNRS) collaboration ALICE
>>>>>>> Office: 301 01 022 GSM: +41 76 487 4755
>>>>>>> Mailbox: F02210 Tel: +41 22 76 72 131
>>>>>>> CERN Fax: +41 22 76 79 480
>>>>>>> CH-1211 Gen鑦e 23 m閘: schutz_at_in2p3.fr <mailto:schutz_at_in2p3.fr>
>>>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> ************************************************
>>>> * Yaxian Mao *
>>>> * *
>>>> * Address: Institute of Particle Physics, *
>>>> * Huazhong Normal University *
>>>> * Wuhan, 430079, P. R. China *
>>>> * Tel: 0086 27 6786 7946 (lab) *
>>>> * 0086 27 8785 2613 (dormitory) *
>>>> * Fax: 0086 27 6786 3213 *
>>>> * Email: maoyx_at_iopp.ccnu.edu.cn <mailto:maoyx_at_iopp.ccnu.edu.cn> *
>>>> * Yaxian.Mao_at_gmail.com <mailto:Yaxian.Mao_at_gmail.com> *
>>>> ************************************************
>>>>
>>>>
>>>
>>
>>> ============================================
>>> Yves SCHUTZ (IN2P3-CNRS) collaboration ALICE
>>> Office: 301 01 022 GSM: +41 76 487 4755
>>> Mailbox: F02210 Tel: +41 22 76 72 131
>>> CERN Fax: +41 22 76 79 480
>>> CH-1211 Gen鑦e 23 m閘: schutz_at_in2p3.fr <mailto:schutz_at_in2p3.fr>
>>
>> =
>
>
>

Yaxian Mao *
*
Address: Institute of Particle Physics, *
Huazhong Normal University *
Wuhan, 430079, P. R. China *
Tel: 0086 27 6786 7946 (lab) *
0086 27 8785 2613 (dormitory) *
Fax: 0086 27 6786 3213 *
Email: maoyx_at_iopp.ccnu.edu.cn *
Yaxian.Mao_at_gmail.com *

Received on Mon Jun 23 2008 - 18:00:16 CEST

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