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python3-scipy: update to 1.11.1.
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2 changed files with 3 additions and 77 deletions
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From 61d892c9faa543ad80bd5e2d0bf69821188487e0 Mon Sep 17 00:00:00 2001
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From: Ilhan Polat <ilhanpolat@gmail.com>
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Date: Tue, 27 Jun 2023 12:00:38 +0200
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Subject: [PATCH] MAINT:linalg.det:Return scalars for singleton inputs (#18763)
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---
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scipy/linalg/_basic.py | 17 ++++++++++++-----
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scipy/linalg/tests/test_basic.py | 17 +++++++++++++++++
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2 files changed, 29 insertions(+), 5 deletions(-)
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diff --git a/scipy/linalg/_basic.py b/scipy/linalg/_basic.py
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index 327ba1ca36ce..6faa3898f720 100644
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--- a/scipy/linalg/_basic.py
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+++ b/scipy/linalg/_basic.py
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@@ -1001,7 +1001,8 @@ def det(a, overwrite_a=False, check_finite=True):
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det : (...) float or complex
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Determinant of `a`. For stacked arrays, a scalar is returned for each
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(m, m) slice in the last two dimensions of the input. For example, an
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- input of shape (p, q, m, m) will produce a result of shape (p, q).
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+ input of shape (p, q, m, m) will produce a result of shape (p, q). If
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+ all dimensions are 1 a scalar is returned regardless of ndim.
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Notes
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-----
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@@ -1066,11 +1067,17 @@ def det(a, overwrite_a=False, check_finite=True):
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# Scalar case
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if a1.shape[-2:] == (1, 1):
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- if a1.dtype.char in 'dD':
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- return np.squeeze(a1)
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+ # Either ndarray with spurious singletons or a single element
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+ if max(*a1.shape) > 1:
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+ temp = np.squeeze(a1)
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+ if a1.dtype.char in 'dD':
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+ return temp
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+ else:
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+ return (temp.astype('d') if a1.dtype.char == 'f' else
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+ temp.astype('D'))
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else:
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- return (np.squeeze(a1).astype('d') if a1.dtype.char == 'f' else
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- np.squeeze(a1).astype('D'))
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+ return (np.float64(a1.item()) if a1.dtype.char in 'fd' else
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+ np.complex128(a1.item()))
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# Then check overwrite permission
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if not _datacopied(a1, a): # "a" still alive through "a1"
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diff --git a/scipy/linalg/tests/test_basic.py b/scipy/linalg/tests/test_basic.py
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index 983530b63ff2..40308500ec4a 100644
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--- a/scipy/linalg/tests/test_basic.py
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+++ b/scipy/linalg/tests/test_basic.py
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@@ -930,6 +930,23 @@ class TestDet:
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def setup_method(self):
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self.rng = np.random.default_rng(1680305949878959)
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+ def test_1x1_all_singleton_dims(self):
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+ a = np.array([[1]])
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+ deta = det(a)
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+ assert deta.dtype.char == 'd'
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+ assert np.isscalar(deta)
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+ assert deta == 1.
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+ a = np.array([[[[1]]]], dtype='f')
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+ deta = det(a)
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+ assert deta.dtype.char == 'd'
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+ assert np.isscalar(deta)
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+ assert deta == 1.
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+ a = np.array([[[1 + 3.j]]], dtype=np.complex64)
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+ deta = det(a)
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+ assert deta.dtype.char == 'D'
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+ assert np.isscalar(deta)
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+ assert deta == 1.+3.j
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+
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def test_1by1_stacked_input_output(self):
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a = self.rng.random([4, 5, 1, 1], dtype=np.float32)
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deta = det(a)
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@ -1,7 +1,7 @@
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# Template file for 'python3-scipy'
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# Template file for 'python3-scipy'
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pkgname=python3-scipy
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pkgname=python3-scipy
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version=1.11.0
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version=1.11.1
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revision=2
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revision=1
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build_style=meson
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build_style=meson
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build_helper="python3"
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build_helper="python3"
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configure_args="$(vopt_if openblas "" "-Dblas=blas -Dlapack=lapack")"
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configure_args="$(vopt_if openblas "" "-Dblas=blas -Dlapack=lapack")"
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@ -16,7 +16,7 @@ maintainer="Andrew J. Hesford <ajh@sideband.org>"
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license="BSD-3-Clause"
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license="BSD-3-Clause"
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homepage="https://scipy.org/"
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homepage="https://scipy.org/"
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distfiles="${PYPI_SITE}/s/scipy/scipy-${version}.tar.gz"
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distfiles="${PYPI_SITE}/s/scipy/scipy-${version}.tar.gz"
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checksum=f9b0248cb9d08eead44cde47cbf6339f1e9aa0dfde28f5fb27950743e317bd5d
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checksum=fb5b492fa035334fd249f0973cc79ecad8b09c604b42a127a677b45a9a3d4289
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make_check="no" # Tests need an installed copy to run and meson makes this tough
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make_check="no" # Tests need an installed copy to run and meson makes this tough
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build_options="openblas"
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build_options="openblas"
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