[Rivet] rebinning histograms

[Andy Buckley]

That doesn't surprise me. YODA 1.3 is very old, as are Rivet releases 
from the same period: we *strongly* suggest to use the newer versions 
from the YODA >= 1.5.x and Rivet >= 2.4.x series. There were bugfixes as 
well as feature enhancements in the many intervening versions.

Andy


On 12/06/16 12:53, Viesturs Veckalns wrote:
> Hello,
> It appears this recipe works with
>
> yoda                 1.5.5  (CMSSW_7_6_3)
>
> but not with
>
> yoda                 1.3.1-eccfad (CMSSW_7_5_0)
>
> Cheers,
> Viesturs
>
> ________________________________________
> From: Andy Buckley
> Sent: 12 April 2016 21:12
> To: Viesturs Veckalns; rivet at projects.hepforge.org
> Subject: Re: [Rivet] rebinning histograms
>
> I forgot an extra argument to yoda.read(): it returns a dict by default
> so the string you are seeing is the path of the first histo used as the
> dictionary key. Either rewrite the loop to use hists.values() or rewrite
> the first operation as:
>
> hists = yoda.read("myfile.yoda", asdict=False)
>
> Sorry, I realised this shortly after sending the snippet, then forgot to
> alert you!
>
> Cheers,
> Andy
>
>
>
>
> On 12/04/16 18:25, Viesturs Veckalns wrote:
>> Dear Andy,
>> I have a problem with the script you sent: h is considered as str and no methods of histo1D are applicable.
>>
>> AttributeError: 'str' object has no attribute 'rebin'
>>
>> Cheers,
>> Viesturs
>> ________________________________________
>> From: Andy Buckley
>> Sent: 03 April 2016 23:22
>> To: Viesturs Veckalns; rivet at projects.hepforge.org
>> Subject: Re: [Rivet] rebinning histograms
>>
>> Hi Viesturs,
>>
>> Yes, histograms have several rebinning methods. You can use a Python
>> script for simple rebinning like this:
>>
>> import yoda
>> hists = yoda.read("myfile.yoda")
>> for h in hists:
>>        h.rebin(3) #< factor of 3 rebinning
>> yoda.write(hists, "newfile.yoda")
>>
>> Not tested, but it should work: see http://yoda.hepforge.org/pydoc/ and
>> search for "rebin" to get documentation. You can also pass a list of
>> explicit new bin edges to rebin() or use explicit rebinBy & rebinTo methods.
>>
>> Andy
>>
>>
>> On 01/04/16 19:31, Viesturs Veckalns wrote:
>>> Dear Rivet team,
>>> Is it possible to rebin yoda histograms?
>>> Cheers,
>>> Viesturs
>>>
>>>
>>> _______________________________________________
>>> Rivet mailing list
>>> Rivet at projects.hepforge.org
>>> https://www.hepforge.org/lists/listinfo/rivet
>>>
>>
>>
>> --
>> Dr Andy Buckley, Lecturer / Royal Society University Research Fellow
>> Particle Physics Expt Group, University of Glasgow
>>
>
>
> --
> Dr Andy Buckley, Lecturer / Royal Society University Research Fellow
> Particle Physics Expt Group, University of Glasgow
>


-- 
Dr Andy Buckley, Lecturer / Royal Society University Research Fellow
Particle Physics Expt Group, University of Glasgow