[Rivet] issue with mkhtml complaining about ReadError

[Andy Buckley]

If using YODA 1.6.x you will need to build Rivet + analyses using the 
C++11 compiler mode. Not *hard* but an extra technicality, and YODA 
1.5.9 should be fine so that's what I recommend until the Rivet 2.5.x 
series.

Do you actually know what file is producing this parser error? It's very 
strange. And there are line breaks in the "line" written out in the 
error message, which shouldn't be possible... is that just an email 
formatting thing?

I think that rivet-cmphistos will try to parse *all* the .yoda files 
found in Rivet's ref data collection, in case any of them match your MC 
histogram path. If both your MC and reference .yoda file are in the 
current directory, try setting
export RIVET_DATA_PATH=$PWD::
and/or
export RIVET_ANALYSIS_PATH=$PWD::
and run rivet-cmphistos again.
(NB. the double-colon on the end matters, to stop fallback to the 
default Rivet data search paths)

Cheers,
Andy


On 29/06/16 16:15, Chris Pollard wrote:
> Hi Raghav,
>
> I don't have this problem with yoda v1.6.0. Do you mind reinstalling the
> latest version of yoda and seeing if it works? I'll let Andy chime in,
> but I don't think there are big differences between your version of yoda
> and mine, so performing a clean install of 1.5.9 may also do the trick.
>
> Chris
>
> On Wed, Jun 29, 2016 at 11:09 AM, Raghav Kunnawalkam Elayavalli
> <raghav.k.e at cern.ch <mailto:raghav.k.e at cern.ch>> wrote:
>
>     Hi Chris,
>
>     I currently have v1.5.9 installed. Ive attached a file which has the
>     first histogram d01-x01-y01 in both the analysis.yoda (data) and
>     mc.yoda (what i get after running rivet -a analysis test.hepmc)
>     Please let me know if you need anything else to debug the issue.
>     Cheers
>     Raghav
>
>>     On Jun 29, 2016, at 4:51 PM, Chris Pollard <chris.pollard at cern.ch
>>     <mailto:chris.pollard at cern.ch>> wrote:
>>
>>     Hi Raghav,
>>
>>     It looks like the .yoda file(s) you have don't conform to the file
>>     format. Can you tell us which version of yoda you are using and
>>     give us an example file?
>>
>>     Cheers,
>>
>>     Chris
>>
>>     On Wed, Jun 29, 2016 at 10:44 AM, Raghav Kunnawalkam Elayavalli
>>     <raghav.k.e at cern.ch <mailto:raghav.k.e at cern.ch>> wrote:
>>
>>         Hi Rivet Experts,
>>
>>         I have an analysis with its corresponding yoda file with the
>>         data points for reference
>>         say analysis.cc <http://analysis.cc/> and analysis.yoda. Now i
>>         compile it and run it with my MC and when i do
>>         rivet-mkhtml mc.yoda  , I get a weird error
>>         [rkunnawa at lxplus008 YpJet]$ rivet-mkhtml mc.yoda
>>         Errors from rivet-cmphistos
>>         Traceback (most recent call last):
>>           File
>>         "/afs/cern.ch/work/r/rkunnawa/JEWEL/local/bin/rivet-cmphistos
>>         <http://cern.ch/work/r/rkunnawa/JEWEL/local/bin/rivet-cmphistos>",
>>         line 318, in <module>
>>             refhistos2 = getRivetRefData()
>>           File
>>         "/afs/cern.ch/work/r/rkunnawa/JEWEL/local/bin/rivet-cmphistos
>>         <http://cern.ch/work/r/rkunnawa/JEWEL/local/bin/rivet-cmphistos>",
>>         line 147, in getRivetRefData
>>             analysisobjects = yoda.read(infile,
>>         patterns=opts.PATHPATTERNS, unpatterns=opts.PATHUNPATTERNS)
>>           File "yoda/include/IO.pyx", line 109, in yoda.core.read
>>         (yoda/core.cpp:75237)
>>         yoda.ReadError: Unexpected line in YODA format parsing when
>>         BEGIN expected:
>>         '4.000000e+015.000000e+010.96767520.05649410.0564941' on line 9
>>
>>         I dont have this particular line it points to in both my
>>         mc.yoda and analysis.yoda!
>>         So i dont know what might cause this. any ideas?
>>
>>         thanks!
>>         Cheers
>>         Raghav
>>
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>>
>>
>
>
>
>
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-- 
Dr Andy Buckley, Lecturer / Royal Society University Research Fellow
Particle Physics Expt Group, University of Glasgow