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Fix numba CauchyRV loc/scale #2309

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Merged
jessegrabowski merged 2 commits into from
Jul 30, 2026
+3 −3
Merged

Fix numba CauchyRV loc/scale #2309

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cf83a36
Fix numba CauchyRV loc/scale, and test it at scale != 1
notluquis Jul 27, 2026
7d62e69
Also un-degenerate the gumbel test case
notluquis Jul 27, 2026
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2 changes: 1 addition & 1 deletion pytensor/link/numba/dispatch/random.py
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Original file line number Diff line number Diff line change
Expand Up @@ -137,7 +137,7 @@ def random_fn(rng, loc, scale):
def numba_core_CauchyRV(op, node):
@numba_basic.numba_njit
def random(rng, loc, scale):
return (loc + rng.standard_cauchy()) / scale
return loc + scale * rng.standard_cauchy()

return random

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4 changes: 2 additions & 2 deletions tests/link/numba/test_random.py
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Expand Up @@ -569,7 +569,7 @@ def test_aligned_RandomVariable(rv_op, dist_args, size):
),
(
pt.dscalar(),
np.array(1.0, dtype=np.float64),
np.array(3.0, dtype=np.float64),
),
],
(2,),
Expand All @@ -585,7 +585,7 @@ def test_aligned_RandomVariable(rv_op, dist_args, size):
),
(
pt.dscalar(),
np.array(1.0, dtype=np.float64),
np.array(4.0, dtype=np.float64),
),
],
(2,),
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