move ground truth methods for existing simulators to utils

sbi-dev / sbi

Simulation-based inference toolkit

https://sbi-dev.github.io/sbi/

Apache License 2.0

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Closed janfb closed 4 years ago

janfb commented 4 years ago

currently implemented simulators have ground truth posterior methods. they dont belong to the simulator and should move to utils.

janfb commented 4 years ago

write utils method that replaces the ground truth posterior and sampling methods in existing simulator classes.
e.g., for the linear gaussian simulator, write a method that depending on uniform or mvg prior returns the corresponding closed form pytorch posterior object for plotting and testing.
similar for slcp and two moons, lotka volterra, mg1 (ground truth via smc?)

alvorithm commented 4 years ago

Closing (guided by checked box in #68, which has now been merged).