Add possibility to return standard deviations for example models.

[timmens]

Current behavior

Currently when asking for the params of an example model via rp.get_example_model, for example with model="kw_97_basis", only the mean estimates of the model are returned and not the estimated standard deviations.

Desired behavior

An option which enables the return of the standard deviations in a bigger params data frame which has a third level on the multiindex for "mean", the classical params data frame, and "sd" the values for the standard deviations.

Solution / Implementation

See above.

Todo

• Review whether the documentation needs to be updated.
• Document PR in CHANGES.rst.

[codecov]

Codecov Report

Merging #361 into master will decrease coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #361      +/-   ##
==========================================
- Coverage   84.74%   84.71%   -0.04%     
==========================================
  Files          45       45              
  Lines        2957     2957              
==========================================
- Hits         2506     2505       -1     
- Misses        451      452       +1     

Flag	Coverage Δ
#end_to_end_edge_case	65.53% <ø> (-0.21%)	⬇️
#end_to_end_precise	52.41% <ø> (-1.05%)	⬇️
#end_to_end_rest	73.21% <ø> (ø)
#integration_edge_case	43.11% <ø> (ø)
#integration_precise	46.09% <ø> (ø)
#integration_rest	64.82% <ø> (ø)
#unit_precise	70.64% <ø> (-0.75%)	⬇️
#unit_rest	25.29% <ø> (ø)

Impacted Files	Coverage Δ
respy/solve.py	98.48% <0.00%> (-1.52%)	⬇️

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[timmens]

Hello @tobiasraabe, do these changes work for you. I have a feeling that the get_example_model function is a little bloat, but I couldn't think of a more succinct way of adding this feature.

[tobiasraabe]

Hi Tim, thanks for this PR! It is perfect and thanks for finding the two mistakes in the former parameterization ❤️. Just one last thing. Please add this PR and your name to the release notes. Then, feel free to merge!

[tobiasraabe]

When you merge, please, remove the commit message in the body of the merge comment. It is useless and clutters git log.