Identifying freeRV variables inside an ArrayStep

junpenglao · December 10, 2021, 7:39am

They are handled in the step meta class:

pymc-devs/pymc/blob/a4f965789199adda68f4958b8155e6a7ca5d62fa/pymc/step_methods/arraystep.py#L151-L156

    
      
          partial_funcs_and_point = [DictToArrayBijection.mapf(x, start_point=point) for x in self.fs]
          if self.allvars:
              partial_funcs_and_point.append(point)
          
          
apoint = DictToArrayBijection.map({v.name: point[v.name] for v in self.vars})
          step_res = self.astep(apoint, *partial_funcs_and_point)

Note that PyMC samples in Real space, thus bounded parameter k10 and k01 are transformed into k10_interval__, k01_interval__

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Identifying freeRV variables inside an ArrayStep

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