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johannesulf / nautilus

Neural Network-Boosted Importance Nested Sampling for Bayesian Statistics
https://nautilus-sampler.readthedocs.io
MIT License
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Extra parameter output #51

Closed ShimingGu closed 2 months ago

ShimingGu commented 2 months ago

Hi Johannes,

Is there any way in the Nautilus to return the posterior of derived parameters (for a common example, a $\sigma_8$ posterior when sampling over a prior with $A_s$)?

Thanks!

johannesulf commented 2 months ago

@ShimingGu Yes, that's what's called blobs in nautilus (https://nautilus-sampler.readthedocs.io/en/latest/guides/blobs.html). Coincidentally, this feature was first implemented to get posteriors of derived cosmological parameters such as sigma_8. Please let me know if you have any questions.

ShimingGu commented 2 months ago

@johannesulf Thanks!