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GalacticDynamics-Oxford / Agama

Action-based galaxy modeling framework
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About the tolerance of the Torus Mapper fitting #40

Closed brugalada closed 6 months ago

brugalada commented 6 months ago

This is probably an out-of-place question but... is there a way to set the tolerance of the fitting process happening in the Torus Mapper routine?

Well, in reality, what I want to know is the default tolerance in case the referee asks me jeje I did not find it in the documentation and digging into the C code looks time consuming, so I thought I should ask first before starting in case it was written somewhere.

Thanks in advance!

eugvas commented 6 months ago

yes, it is the optional argument "tol" in the constructor of agama.ActionMapper (if you're talking about the Python interface), or the equivalent argument in createActionMapper routine (C++).

brugalada commented 6 months ago

Thank you as always ^^

Let me just write here, for completeness, that the default value of the tolerance I found is 0.003 of |dJ|/|J|. Taken from Torus.h (AutoFit) and from actions_torus.h (ActionMapperTorus).