[Rivet] rebinning histograms

[Viesturs Veckalns]

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