I want to implement a basic model of capture and recapture in PyMC3 (you capture 100 animals and mark them, then you liberate them and recapture another 100 once they have mixed, and annotate how many are marked). This is my code: import numpy as np import pymc3 as pm import arviz as az # Datos: K…

(I’m running the same versions of PyMC and Arviz as you) The shape problem is happening because your observed data, n=10, is a scalar. In addition, since N is not observed, there is no corresponding observed value in the trace, and arviz complains. You have several options: Set observed = False i…

Question: capture and recapture with hypergeometric

Questions v3

davidsuculum April 7, 2022, 7:55am 3

Hi, I’m running PyMC 3.11.4, ArViz 0.11.4 and Python 3.7.

The other thing you mention: requesting less than 1 posterior predictive sample than there are samples in the trace how could be fixed? Thanks.

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Question: capture and recapture with hypergeometric

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