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There is an error here that was introduced in `dc65afe`:
https://github.com/root-project/root/blob/6abb8e90d9bea276269f375a67855c4065813343/roofit/histfactory/src/HistoToWorkspaceFactoryFast.cxx#L7…
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Current histfactory is optional (it requires xml is to enable/available) but the test depending on it are run nonetheless.
So with
```
$ grep xml CMakeCache.txt
...
//Enable support for XML (r…
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To provide native support of individual [pyhf](https://diana-hep.org/pyhf/) JSON files, the structure of a HEPData submission would be mostly the same, i.e. tied together by a `submission.yaml` file c…
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Someone report that with v1.2.0 and 1.2.2 that the prefit errors in yields tables are wonky. It could be related to the v6.26 ROOT changes.
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- [X] Checked for duplicates
None found
### Describe the bug
Since three nights (Jan 15th), the dev3 (ROOT-master) debug builds fail systematically with an error in
```
clang::ASTReader::ReadMo…
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Hi all!
I want to run `HistFitter.py -w analysis/tutorial/MySimpleChannelConfig.py`, but error occurs after excution. It seems that data file for this code is missing. Can someone make up it ? thanks…
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# Question
I have noticed that the toys hypotest seems to give some strange values even if the asymptotics gives regular looking values.
In general the cls_exp upper sigma values seem to be all …
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Phoebe discovered that our `nix` version of ROOT 5.34 produces slightly different fit results than her local copy of ROOT 5.34.
This is due to the patch to `nix` version doesn't include a fix to use …
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- [ ] Checked for duplicates
### Describe the bug
Under some circumstances, `createHistogram` creates histograms with a binning that does not reflect the "correct" binning of the observable.
…
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**What's the problem this feature will solve?**
:wave: Hi. Our project [`pyhf`](https://github.com/scikit-hep/pyhf) just switched (c.f. https://github.com/scikit-hep/pyhf/pull/2095) from having o…