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Test quantities Linear Regression Starter notebook #544

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merged 3 commits into from
Jul 29, 2025
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Test quantities Linear Regression Starter notebook #544

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6e64bb6
Implementation of log-lik test quantity for SBC in starter notebook
han-ol Jul 23, 2025
d16467b
update data-dependent test-quantities example
paul-buerkner Jul 29, 2025
958a1cd
Small typo fixes in linear regression notebook
han-ol Jul 29, 2025
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6 changes: 4 additions & 2 deletions bayesflow/diagnostics/plots/calibration_ecdf.py
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Original file line number Diff line number Diff line change
Expand Up @@ -144,9 +144,11 @@ def calibration_ecdf(
tq_targets = test_quantity_fn(data=targets)
test_quantities_targets[key] = np.expand_dims(tq_targets, axis=1)

# # Flatten estimates for batch processing in test_quantity_fn, apply function, and restore shape
# Flatten estimates for batch processing in test_quantity_fn, apply function, and restore shape
num_conditions, num_samples = next(iter(estimates.values())).shape[:2]
flattened_estimates = keras.tree.map_structure(lambda t: np.reshape(t, (-1, *t.shape[2:])), estimates)
flattened_estimates = keras.tree.map_structure(
lambda t: np.reshape(t, (num_conditions * num_samples, *t.shape[2:])), estimates
)
flat_tq_estimates = test_quantity_fn(data=flattened_estimates)
test_quantities_estimates[key] = np.reshape(flat_tq_estimates, (num_conditions, num_samples, 1))

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378 changes: 325 additions & 53 deletions examples/Linear_Regression_Starter.ipynb
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