Update comb. BG procedure and add single particle yield analysis

There are again the strange subprojects from the external directory. They need to be removed from the merge request before it can be merged.

added 1 commit

• 289cfb77 - Update lmvm python scripts

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They are deleted. I don't know where they come from. Should I maybe install cbmroot from scratch after the MR is passed?

@cornelius.riesen_AT_physik.uni-giessen.de,

thanks for the fast action. Since the problem appeared again it is probably a good idea to start with a fresh working directory after the MR has passed.

Dear @i.selyuzhenkov,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

@s.lebedev,

could you please confirm that the changes are okay. If I am correct you and Elena were the original authors of the code.

I asked Cornelius to create this MR. The changes are ok.

added 2 commits

• c80ef52f - 1 commit from branch computing:master
• cc53d8e1 - Update lmvm python scripts

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@s.lebedev,

thanks for approval. I will merge it when the pipeline succeeds.

merged

@cornelius.riesen_AT_physik.uni-giessen.de,

please check your code again and probably create another MR. On CDash I saw the following warnings which should be taken seriously. Probably you mixed up == and =

[CTest: warning matched] /Users/fairroot/builds/computing/cbmroot/analysis/PWGDIL/dielectron/lmvm/CbmAnaDielectronTask.cxx:2669:36: warning: equality comparison result unused [-Wunused-comparison]
  if (particle == "rho0") particle == "inmed";  // or "inmed_had_epem"??
                          ~~~~~~~~~^~~~~~~~~~
[CTest: warning matched] /Users/fairroot/builds/computing/cbmroot/analysis/PWGDIL/dielectron/lmvm/CbmAnaDielectronTask.cxx:2669:36: note: use '=' to turn this equality comparison into an assignment
  if (particle == "rho0") particle == "inmed";  // or "inmed_had_epem"??
                                   ^~
                                   =
[CTest: warning matched] /Users/fairroot/builds/computing/cbmroot/analysis/PWGDIL/dielectron/lmvm/CbmAnaDielectronTask.cxx:2671:14: warning: equality comparison result unused [-Wunused-comparison]
    particle == "omegadalitz";
    ~~~~~~~~~^~~~~~~~~~~~~~~~
[CTest: warning matched] /Users/fairroot/builds/computing/cbmroot/analysis/PWGDIL/dielectron/lmvm/CbmAnaDielectronTask.cxx:2671:14: note: use '=' to turn this equality comparison into an assignment
    particle == "omegadalitz";
             ^~
             =
[CTest: warning matched] /Users/fairroot/builds/computing/cbmroot/analysis/PWGDIL/dielectron/lmvm/CbmAnaDielectronTask.cxx:2673:14: warning: equality comparison result unused [-Wunused-comparison]
    particle == "omegaepem";
    ~~~~~~~~~^~~~~~~~~~~~~~
[CTest: warning matched] /Users/fairroot/builds/computing/cbmroot/analysis/PWGDIL/dielectron/lmvm/CbmAnaDielectronTask.cxx:2673:14: note: use '=' to turn this equality comparison into an assignment
    particle == "omegaepem";
             ^~
             =
[CTest: warning matched] /Users/fairroot/builds/computing/cbmroot/analysis/PWGDIL/dielectron/lmvm/CbmAnaDielectronTask.cxx:2675:14: warning: equality comparison result unused [-Wunused-comparison]
    particle == "qgp";
    ~~~~~~~~~^~~~~~~~
[CTest: warning matched] /Users/fairroot/builds/computing/cbmroot/analysis/PWGDIL/dielectron/lmvm/CbmAnaDielectronTask.cxx:2675:14: note: use '=' to turn this equality comparison into an assignment
    particle == "qgp";
             ^~
             =
[CTest: warning matched] 4 warnings generated. 

[CTest: warning matched] /Users/fairroot/builds/computing/cbmroot/analysis/PWGDIL/dielectron/lmvm/CbmAnaDielectronTaskDrawAll.cxx:1711:14: warning: variable 'cock' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
    else if (step == kPtCut)
             ^~~~~~~~~~~~~~
[CTest: warning matched] /Users/fairroot/builds/computing/cbmroot/analysis/PWGDIL/dielectron/lmvm/CbmAnaDielectronTaskDrawAll.cxx:1714:5: note: uninitialized use occurs here
    cock->Rebin(nRebin);
    ^~~~
[CTest: warning matched] /Users/fairroot/builds/computing/cbmroot/analysis/PWGDIL/dielectron/lmvm/CbmAnaDielectronTaskDrawAll.cxx:1711:10: note: remove the 'if' if its condition is always true
    else if (step == kPtCut)
         ^~~~~~~~~~~~~~~~~~~
[CTest: warning matched] /Users/fairroot/builds/computing/cbmroot/analysis/PWGDIL/dielectron/lmvm/CbmAnaDielectronTaskDrawAll.cxx:1689:15: note: initialize the variable 'cock' to silence this warning
    TH1D* cock;
              ^
               = nullptr
[CTest: warning matched] 1 warning generated.

@f.uhlig @cornelius.riesen_AT_physik.uni-giessen.de I plan in the next 3-4 weeks completely review and refactor LMVM analysis code. I propose to fix these warnings and then merge.

I made some corrections and started a new MR a few minutes ago. I hope these error messages will be gone.