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* [ ] comparison of bilby posteriors for GW150914 with exactly the same priors, but one using phase marginalisation and one without.
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* [ ] P-P plots for a waveform model (IMRPhenomXHM?) including (some) higher order modes without using phase marginalised likelihoods. If speed is an issue, maybe hold unimportant parameters (sky positions?) fixed.
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## PP tests using IMRPhenomPv2
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## PP tests using IMRPhenomPv2 using serial bilby
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* Results using [bilby0.6.4-4436ec59-CLEAN_bilby_pipe0.3.9-82325e0-CLEAN](https://ldas-jobs.ligo-wa.caltech.edu/~gregory.ashton/bilby_review/bilby0.6.4-4436ec59-CLEAN_bilby_pipe0.3.9-82325e0-CLEAN/)
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| ---- | ----- | ----- |
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| Intrinsic, data70, network SNR=20.8, | ![image](uploads/74b3c47512665cf180804e3cbd3f5148/image.png) | ![image](uploads/db470413088cb209692eec1b4d9cbad5/image.png)
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| Extrinsic, data70, network SNR=20.8, | ![image](uploads/9d3157b1aab6ac421fbb799c14047d11/image.png) | ![image](uploads/5d6bd9462d9f65afc91f4440fcdfb6dc/image.png) |
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| Spins, data70, network SNR=20.8 | ![image](uploads/692113fe6196b4c8943f5e1f194e241c/image.png) | ![image](uploads/bc47b239a6f226ae843d55a94425fec9/image.png)| |
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| Spins, data70, network SNR=20.8 | ![image](uploads/692113fe6196b4c8943f5e1f194e241c/image.png) | ![image](uploads/bc47b239a6f226ae843d55a94425fec9/image.png)|
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### Conclusion: PP tests using IMRPhenomPv2 using serial bilby
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The PP tests indicate that (for the range of SNRs tested), the posteriors are not biased at the level of the test. But, corner plots of high SNR events demonstrate the posteriors are not "clean". They exhibit signs of shredding: a known issue. |