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Fix UserWarning always being printed #5286

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Merged
merged 1 commit into from
Dec 24, 2021
Merged

Fix UserWarning always being printed #5286

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13 changes: 7 additions & 6 deletions pymc/backends/arviz.py
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Original file line number Diff line number Diff line change
Expand Up @@ -386,12 +386,13 @@ def translate_posterior_predictive_dict_to_xarray(self, dct, kind) -> xr.Dataset
else:
data[k] = np.expand_dims(ary, 0)
warning_vars.append(k)
warnings.warn(
f"The shape of variables {', '.join(warning_vars)} in {kind} group is not compatible "
"with number of chains and draws. The automatic dimension naming might not have worked. "
"This can also mean that some draws or even whole chains are not represented.",
UserWarning,
)
if warning_vars:
warnings.warn(
f"The shape of variables {', '.join(warning_vars)} in {kind} group is not compatible "
"with number of chains and draws. The automatic dimension naming might not have worked. "
"This can also mean that some draws or even whole chains are not represented.",
UserWarning,
)
return dict_to_dataset(data, library=pymc, coords=self.coords, dims=self.dims)

@requires(["posterior_predictive"])
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