Description
Describe the bug
When running a fit with a Ride regression model we get:
DeprecationWarning: The 'sym_pos' keyword is deprecated and should be replaced by using 'assume_a = "pos"'. 'sym_pos' will be removed in SciPy 1.11.0.
Looking through the SciPy release notes, sym_pos was actually deprecated about 5 years ago, they just forgot to add the deprecation warning. Now that they have, it is probably best to make this change now before the sym_pos keyword is actually removed.
The argument is used 4 times within sklearn/linear_model/_ridge.py.
Steps/Code to Reproduce
import warnings
from sklearn import linear_model
warnings.simplefilter('always', DeprecationWarning)
reg = linear_model.Ridge(alpha=0.5, solver='cholesky')
reg.fit([[0, 0], [0, 0], [1, 1]], [0, 0.1, 1])
Expected Results
No warnings generated
Actual Results
/usr/local/lib/python3.10/site-packages/sklearn/linear_model/_ridge.py:212: DeprecationWarning: The 'sym_pos' keyword is deprecated and should be replaced by using 'assume_a = "pos"'. 'sym_pos' will be removed in SciPy 1.11.0.
return linalg.solve(A, Xy, sym_pos=True, overwrite_a=True).T
Versions
System:
python: 3.10.5 (main, Jul 13 2022, 05:45:22) [GCC 10.2.1 20210110]
executable: /usr/local/bin/python
machine: Linux-5.15.0-43-generic-x86_64-with-glibc2.31
Python dependencies:
sklearn: 1.1.1
pip: 22.1.2
setuptools: 58.1.0
numpy: 1.23.1
scipy: 1.9.0
Cython: None
pandas: 1.4.3
matplotlib: 3.5.2
joblib: 1.1.0
threadpoolctl: 3.1.0
Built with OpenMP: True
threadpoolctl info:
user_api: openmp
internal_api: openmp
prefix: libgomp
filepath: /usr/local/lib/python3.10/site-packages/scikit_learn.libs/libgomp-a34b3233.so.1.0.0
version: None
num_threads: 32
user_api: blas
internal_api: openblas
prefix: libopenblas
filepath: /usr/local/lib/python3.10/site-packages/numpy.libs/libopenblas64_p-r0-742d56dc.3.20.so
version: 0.3.20
threading_layer: pthreads
architecture: Zen
num_threads: 32
user_api: blas
internal_api: openblas
prefix: libopenblas
filepath: /usr/local/lib/python3.10/site-packages/scipy.libs/libopenblasp-r0-9f9f5dbc.3.18.so
version: 0.3.18
threading_layer: pthreads
architecture: Zen
num_threads: 32