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Revert change to delta filter #677

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Merged
merged 2 commits into from
Jan 17, 2025
Merged

Revert change to delta filter #677

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b5182e2
Revert change to delta filter
dstansby Jan 4, 2025
fea7eda
Merge branch 'main' into revert-delta
dstansby Jan 17, 2025
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7 changes: 1 addition & 6 deletions numcodecs/delta.py
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Original file line number Diff line number Diff line change
Expand Up @@ -63,12 +63,7 @@ def encode(self, buf):
enc[0] = arr[0]

# compute differences
# using np.subtract for in-place operations
if arr.dtype == bool:
np.not_equal(arr[1:], arr[:-1], out=enc[1:])
else:
np.subtract(arr[1:], arr[:-1], out=enc[1:])

enc[1:] = np.diff(arr)
return enc

def decode(self, buf, out=None):
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