pyhf v0.5.3 released

[pyhf announcements]

Dear pyhf users,

pyhf v0.5.3 is out now on PyPI and Conda forge! Please upgrade and start using this patch release ASAP.

In addition to testing improvements and optimization, this latest release adds some small fixes, ease of use improvements and small features:

Fixes

- Workspaces are now immutable

- ShapeFactor support added to XML reading and writing

- An error is raised if a fit initialization parameter is outside of its bounds (preventing hypotest with POI outside of bounds)

Features

Python API:

- Inverting hypothesis tests to get upper limits now has an API with pyhf.infer.intervals.upperlimit

- Building workspaces from a model and data added with pyhf.workspace.build

CLI API:

- Added CLI API for pyhf.infer.fit: pyhf fit

- pyhf combine now allows for merging channels: pyhf combine --merge-channels --join <join option>

- Added utility to download archived pyhf pallets (workspaces + patchsets) to contrib module: pyhf contrib download

We would love to get feedback on v0.5.3 and user suggestions as we move forward on developing v0.6.0 (which among other nice feature improvements will include toys).

Best,

The pyhf dev team (Lukas, Matthew, and Giordon)