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Remove length check in favour of truthiness of the object #1445

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Merged
merged 5 commits into from
Jan 14, 2021
Merged

Remove length check in favour of truthiness of the object #1445

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44e3b10
Remove length check in favour of truthiness of the object
deepsource-autofix[bot] Jan 13, 2021
570c43f
Merge branch 'master' into deepsource-fix-c621dfcd
wyli Jan 14, 2021
05904d4
fixes The truth value of an array with more than one element is ambig…
wyli Jan 14, 2021
52e78f8
fixes indices types
wyli Jan 14, 2021
1f1aa05
Merge branch 'master' into deepsource-fix-c621dfcd
wyli Jan 14, 2021
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9 changes: 5 additions & 4 deletions monai/transforms/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -344,15 +344,16 @@ def _correct_centers(
return center_ori

centers = []
fg_indices, bg_indices = np.asarray(fg_indices), np.asarray(bg_indices)
if fg_indices.size == 0 and bg_indices.size == 0:
raise ValueError("No sampling location available.")

if not len(fg_indices) or not len(bg_indices):
if not len(fg_indices) and not len(bg_indices):
raise ValueError("No sampling location available.")
if fg_indices.size == 0 or bg_indices.size == 0:
warnings.warn(
f"N foreground {len(fg_indices)}, N background {len(bg_indices)},"
"unable to generate class balanced samples."
)
pos_ratio = 0 if not len(fg_indices) else 1
pos_ratio = 0 if fg_indices.size == 0 else 1

for _ in range(num_samples):
indices_to_use = fg_indices if rand_state.rand() < pos_ratio else bg_indices
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