I have a basic distribution like this: x_i = pm.Uniform("x", lower=-1.0, upper=0.0, shape=N, dims="x []") When I sample using pm.fit() then pm.sample_approx(), the edges of the prior region, which are of course sharp, are not reached by my samples, which ends up biasing the posterior. Does pymc o…

Why doesn't ADVI sample from my prior edges?

cluhmann January 23, 2025, 9:47pm 2

Welcome!

Can you provide a description or visualization of what exactly you are seeing and how it deviates from what you expect?

1 Like

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