Add some post processing tools

This MR modifies how the marginal histograms are generated now:

• everything in the posterior is plotted by default.
• the pdf and cdf are plotted.

It also adds methods to the result to get the credible level at which injections are found and a function to make a pp-plot from many injections.

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• c08ca5dc - add future import

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• 4d2052bb - appease the great god flake
• a99230e6 - make plotting use plot not hist

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• aa5d0c4b - abstract plotting a little

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Hi @colm.talbot, could you expand on what is meant by

everything in the posterior is plotted by default

I couldn't quite see it from the code, do you mean only if plot_marginals is called? Or something else.

Yeah, just if plot_marginals is called.

added 20 commits

• aa5d0c4b...1f38d9f5 - 19 commits from branch master
• 45df2a8e - Merge branch 'master' into 'add_some_post_processing_tools'

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added 28 commits

• 45df2a8e...349d7f1a - 21 commits from branch master
• 8630ff95 - Merge branch 'master' into add_some_post_processing_tools
• 32f779e1 - raise error if injection parameters are not specified
• 935c1878 - add credible levels tests
• fd6b1fa3 - update pandas referencing
• c0993c09 - PriorSet->PriorDict
• 433ef4ba - flake
• 58999905 - Merge branch 'add_some_post_processing_tools' of git.ligo.org:lscsoft/bilby into…

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• 1548c571 - remove commented line

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approved this merge request

approved this merge request

merged

mentioned in commit 5c59c6d9