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Fix empty edge indices handling #332

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Merged
merged 3 commits into from
Jun 5, 2023
Merged

Fix empty edge indices handling #332

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4debbab
update
rusty1s May 22, 2023
3438299
fix empty
rusty1s Jun 5, 2023
3b12d56
Merge branch 'master' into fix_to_symmetric
rusty1s Jun 5, 2023
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2 changes: 1 addition & 1 deletion torch_sparse/storage.py
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Original file line number Diff line number Diff line change
Expand Up @@ -146,7 +146,7 @@ def __init__(
self._csr2csc = csr2csc
self._csc2csr = csc2csr

if not is_sorted:
if not is_sorted and self._col.numel() > 0:
idx = self._col.new_zeros(self._col.numel() + 1)
idx[1:] = self.row()
idx[1:] *= self._sparse_sizes[1]
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2 changes: 2 additions & 0 deletions torch_sparse/tensor.py
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Expand Up @@ -357,6 +357,8 @@ def numel(self) -> int:
return self.nnz()

def density(self) -> float:
if self.sparse_size(0) == 0 or self.sparse_size(1) == 0:
return 0.0
return self.nnz() / (self.sparse_size(0) * self.sparse_size(1))

def sparsity(self) -> float:
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