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New Fixed "distribution" #30

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j-faria
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@j-faria j-faria commented Oct 19, 2018

This might be useful as an easy way to fix a parameter. What do you think?

@eggplantbren
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This seems relatively pointless to me, but I might accept it. What's the use case? Isn't it easy to just set the value in from_prior and never perturb it if you want something to be held constant?

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j-faria commented Jan 29, 2019

Hi Brendon, sorry, this got forgotten...
A very typical use case in kima is to fix the eccentricity of the planets to zero. Or the period to a given value... I agree it's not hard to do the two things you suggest (though it implies changing the source code). But this would still be easier: in one line you can set a "Fixed" prior for a given parameter.

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