When i’m trying to calculate the waic of my trace file, i get the weird error below. Visually inspecting the trace file doesn’t give away any potential error. The likelihood matrix looks reasonable. What could be the cause of this? Would I need to refit the model? ~/opt/anaconda3/envs/modeling/lib/…

You can use arviz.to_netcdf — ArviZ dev documentation to save data

Weird error using az.waic

aloctavodia August 13, 2022, 10:36am 2

That’s weird. It seems your trace/InferenceData has some weird type. Can you share the trace/InferenceData?

Also I recommend using loo instead of waic.

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