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Opened 15 years ago

Last modified 14 years ago

#272 closed defect

Histograms multiplied by abs(x)? — at Version 1

Reported by: Christian Speckner Owned by: kilian
Priority: P1 Milestone:
Component: core Version: 2.0.0rc3
Severity: blocker Keywords:
Cc:

Description (last modified by Christian Speckner)

To me, it seems like binning an observable O(x) over x results in a histogram multiplied by abs(x). As an example, I have attached the result of binning \theta (polar angle) and \cos\theta as functions of \theta for a constant 2->2 matrix element with massless phasespace (attached together with the sindarin input and the hacked matrix element). Contrary to the expectation of seeing distributions like \sin\theta resp. 1, the result looks like \abs\theta*\sin\theta resp. \abs\theta. I've attached the faulty histograms together with the WHIZARD 1.95 result (which looks correct to me).

Change History (5)

Changed 15 years ago by Christian Speckner

Attachment: test.sin added

Changed 15 years ago by Christian Speckner

Attachment: test.f90 added

Changed 15 years ago by Christian Speckner

Attachment: test.ps.bz2 added

Changed 15 years ago by Christian Speckner

Attachment: whizard-plots.ps.bz2 added

comment:1 Changed 15 years ago by Christian Speckner

Description: modified (diff)
Summary: Binned observables multiplied by abs(x)?Histograms multiplied by abs(x)?

Fix my description ;)

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