classes to represent continuous distributions for simulation draws #624
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As an incremental step towards #611 , this PR refactors the
draw_
functions insimulation.py
so that each one is encapsulated in a class (Normal
,Bernoulli
, etc.)Draws are now accomplished by using the
draw
method on a class initialized with the appropriate parameters.This brings the HARK programming idioms closer to mathematical invocations of random variables.
It also brings HARK closer in line with best practices for representing distributions in other libraries, such as Dolo.