Mailman 3 December 2018 - SciPy-Dev

SciPy 1.2.0 release schedule
by Tyler Reddy 07 Feb '19

07 Feb '19

Hi all, It is almost 6 months after the 1.1.0 release on May 5, so probably time to plan the 1.2.0 release. It would be a good idea to look over the PRs with a 1.2.0 milestone <https://github.com/scipy/scipy/pulls?q=is%3Aopen+is%3Apr+milestone%3A1.2.0>, and tag anything else that should have this milestone appropriately. I'd like to propose the following schedule: Nov. 5: branch 1.2.x Nov. 8: rc1 Nov. 21: rc2 (if needed) Nov. 30: final release Thoughts? Best wishes, Tyler

5 25

SciPy 1.0 paper writing proposal
by Ralf Gommers 30 Jan '19

30 Jan '19

Hi all, TL;DR, let's write the long journal paper on SciPy that we've wanted for a while, let's form a small committee to coordinate, and get it out the door in 2-3 months. Motivation --------------- (credits for most of this text: Evgeni) Many scipy contributors' day jobs are in academia. Bibliometry -- papers in refereed journals and citations of papers by other papers -- is one of the main performance indicators in most academic establishments. Since we do not generate papers, scipy contributions are all but invisible for the purposes of a contributor's annual report. Of course, details vary wildly; in many cases a contributor manages to balance their time, or to argue common sense with their superiors, or get an approval for scipy work, or just ignores the issue altogether -- but sooner or later there is a form to be filled or boxes to be checked, and scipy contributions simply do not fit in. A peer-reviewed journal paper on scipy will help contributors get the academic credit they deserve. We can write *the* paper for SciPy 1.0, with overall project structure, goals, etc., and for specific features/modules a focus on say the last 3 years. History ---------- For SciPy 1.0 we had three targets on the publicity/credits front: an interesting release announcement, interesting blogs/stories (NumFOCUS blog, Hacker News, etc.) and a paper. We didn't have the bandwidth for a paper in the end, the rest was successful. [1] is a previous announcement on this list about writing (a) paper(s) on SciPy. We wanted both "short papers" to cover one or two releases (target journal JOSS) and a full paper as the authoritative reference for SciPy. We had an earlier attempt for a "short paper", it's mostly written but has stalled (see [2]). We ran out of steam on that one. To avoid that this time around, it would be good to have a clear public plan, target dates, and a small committee rather than one person to drive things forward. Proposal ------------ Here's a proposal for all aspects of this exercise that I can think about now. Some parts stolen from the AstroPy paper [3] (because their process worked quite well). Form a small coordination committee of 3-5 people that set up the paper structure, move things along when parts stall, propose/take decisions as needed, invite co-authors, and organise paper submission/rework. Paper writing to be done by whoever volunteers for a section, not just the coordination committee. First outline/structure to be done by committee, which then asks for review of structure and volunteers for section writing. Scope: a 6-10 page paper, covering history, package scope and structure, community/organisational aspects, key features and recent enhancements per module, and roadmap. Authorship: anyone who made a substantial contribution in the history of the project. Here "substantial" is interpreted as anything beyond a one-line doc fix. Rationale: better to be too inclusive than exclusive. Sign-up via a web form, we send the link to that form to all email addresses in the commit history till v1.0. Author order (details tbd by committee): 1. The SciPy Developers 2. Maintainers, paper writers, other key contributors - in order of contribution level 3. All other authors - alphabetically ordered Submission target: mid-April, to either PeerJ Computer Science or Journal of Open Research Software (tbd by committee). Comments? Volunteers for committee? References ---------------- [1] https://mail.python.org/pipermail/scipy-dev/2016-August/021474.html [2] https://github.com/scipy/scipy-articles/pull/4 [3] https://github.com/astropy/astropy-v2.0-paper Cheers, Ralf

12 19

ANN: SciPy 1.2.0
by Tyler Reddy 14 Jan '19

14 Jan '19

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hi all, On behalf of the SciPy development team I'm pleased to announce the release of SciPy 1.2.0. This is an LTS release and the last to support Python 2.7. Sources and binary wheels can be found at: https://pypi.org/project/scipy/ and at: https://github.com/scipy/scipy/releases/tag/v1.2.0 One of a few ways to install this release with pip: pip install scipy==1.2.0 ========================== SciPy 1.2.0 Release Notes ========================== SciPy 1.2.0 is the culmination of 6 months of hard work. It contains many new features, numerous bug-fixes, improved test coverage and better documentation. There have been a number of deprecations and API changes in this release, which are documented below. All users are encouraged to upgrade to this release, as there are a large number of bug-fixes and optimizations. Before upgrading, we recommend that users check that their own code does not use deprecated SciPy functionality (to do so, run your code with ``python -Wd`` and check for ``DeprecationWarning`` s). Our development attention will now shift to bug-fix releases on the 1.2.x branch, and on adding new features on the master branch. This release requires Python 2.7 or 3.4+ and NumPy 1.8.2 or greater. Note: This will be the last SciPy release to support Python 2.7. Consequently, the 1.2.x series will be a long term support (LTS) release; we will backport bug fixes until 1 Jan 2020. For running on PyPy, PyPy3 6.0+ and NumPy 1.15.0 are required. Highlights of this release --------------------------- - 1-D root finding improvements with a new solver, ``toms748``, and a new unified interface, ``root_scalar`` - New ``dual_annealing`` optimization method that combines stochastic and local deterministic searching - A new optimization algorithm, ``shgo`` (simplicial homology global optimization) for derivative free optimization problems - A new category of quaternion-based transformations are available in `scipy.spatial.transform` New features ============ `scipy.ndimage` improvements --------------------------------- Proper spline coefficient calculations have been added for the ``mirror``, ``wrap``, and ``reflect`` modes of `scipy.ndimage.rotate` `scipy.fftpack` improvements --------------------------------- DCT-IV, DST-IV, DCT-I, and DST-I orthonormalization are now supported in `scipy.fftpack`. `scipy.interpolate` improvements --------------------------------- `scipy.interpolate.pade` now accepts a new argument for the order of the numerator `scipy.cluster` improvements ----------------------------- `scipy.cluster.vq.kmeans2` gained a new initialization method, kmeans++. `scipy.special` improvements ----------------------------- The function ``softmax`` was added to `scipy.special`. `scipy.optimize` improvements ------------------------------ The one-dimensional nonlinear solvers have been given a unified interface `scipy.optimize.root_scalar`, similar to the `scipy.optimize.root` interface for multi-dimensional solvers. ``scipy.optimize.root_scalar(f, bracket=[a ,b], method="brenth")`` is equivalent to ``scipy.optimize.brenth(f, a ,b)``. If no ``method`` is specified, an appropriate one will be selected based upon the bracket and the number of derivatives available. The so-called Algorithm 748 of Alefeld, Potra and Shi for root-finding within an enclosing interval has been added as `scipy.optimize.toms748`. This provides guaranteed convergence to a root with convergence rate per function evaluation of approximately 1.65 (for sufficiently well-behaved functions.) ``differential_evolution`` now has the ``updating`` and ``workers`` keywords. The first chooses between continuous updating of the best solution vector (the default), or once per generation. Continuous updating can lead to faster convergence. The ``workers`` keyword accepts an ``int`` or map-like callable, and parallelises the solver (having the side effect of updating once per generation). Supplying an ``int`` evaluates the trial solutions in N parallel parts. Supplying a map-like callable allows other parallelisation approaches (such as ``mpi4py``, or ``joblib``) to be used. ``dual_annealing`` (and ``shgo`` below) is a powerful new general purpose global optizimation (GO) algorithm. ``dual_annealing`` uses two annealing processes to accelerate the convergence towards the global minimum of an objective mathematical function. The first annealing process controls the stochastic Markov chain searching and the second annealing process controls the deterministic minimization. So, dual annealing is a hybrid method that takes advantage of stochastic and local deterministic searching in an efficient way. ``shgo`` (simplicial homology global optimization) is a similar algorithm appropriate for solving black box and derivative free optimization (DFO) problems. The algorithm generally converges to the global solution in finite time. The convergence holds for non-linear inequality and equality constraints. In addition to returning a global minimum, the algorithm also returns any other global and local minima found after every iteration. This makes it useful for exploring the solutions in a domain. `scipy.optimize.newton` can now accept a scalar or an array ``MINPACK`` usage is now thread-safe, such that ``MINPACK`` + callbacks may be used on multiple threads. `scipy.signal` improvements ---------------------------- Digital filter design functions now include a parameter to specify the sampling rate. Previously, digital filters could only be specified using normalized frequency, but different functions used different scales (e.g. 0 to 1 for ``butter`` vs 0 to π for ``freqz``), leading to errors and confusion. With the ``fs`` parameter, ordinary frequencies can now be entered directly into functions, with the normalization handled internally. ``find_peaks`` and related functions no longer raise an exception if the properties of a peak have unexpected values (e.g. a prominence of 0). A ``PeakPropertyWarning`` is given instead. The new keyword argument ``plateau_size`` was added to ``find_peaks``. ``plateau_size`` may be used to select peaks based on the length of the flat top of a peak. ``welch()`` and ``csd()`` methods in `scipy.signal` now support calculation of a median average PSD, using ``average='mean'`` keyword `scipy.sparse` improvements ---------------------------- The `scipy.sparse.bsr_matrix.tocsr` method is now implemented directly instead of converting via COO format, and the `scipy.sparse.bsr_matrix.tocsc` method is now also routed via CSR conversion instead of COO. The efficiency of both conversions is now improved. The issue where SuperLU or UMFPACK solvers crashed on matrices with non-canonical format in `scipy.sparse.linalg` was fixed. The solver wrapper canonicalizes the matrix if necessary before calling the SuperLU or UMFPACK solver. The ``largest`` option of `scipy.sparse.linalg.lobpcg()` was fixed to have a correct (and expected) behavior. The order of the eigenvalues was made consistent with the ARPACK solver (``eigs()``), i.e. ascending for the smallest eigenvalues, and descending for the largest eigenvalues. The `scipy.sparse.random` function is now faster and also supports integer and complex values by passing the appropriate value to the ``dtype`` argument. `scipy.spatial` improvements ----------------------------- The function `scipy.spatial.distance.jaccard` was modified to return 0 instead of ``np.nan`` when two all-zero vectors are compared. Support for the Jensen Shannon distance, the square-root of the divergence, has been added under `scipy.spatial.distance.jensenshannon` An optional keyword was added to the function `scipy.spatial.cKDTree.query_ball_point()` to sort or not sort the returned indices. Not sorting the indices can speed up calls. A new category of quaternion-based transformations are available in `scipy.spatial.transform`, including spherical linear interpolation of rotations (``Slerp``), conversions to and from quaternions, Euler angles, and general rotation and inversion capabilities (`spatial.transform.Rotation`), and uniform random sampling of 3D rotations (`spatial.transform.Rotation.random`). `scipy.stats` improvements --------------------------- The Yeo-Johnson power transformation is now supported (``yeojohnson``, ``yeojohnson_llf``, ``yeojohnson_normmax``, ``yeojohnson_normplot``). Unlike the Box-Cox transformation, the Yeo-Johnson transformation can accept negative values. Added a general method to sample random variates based on the density only, in the new function ``rvs_ratio_uniforms``. The Yule-Simon distribution (``yulesimon``) was added -- this is a new discrete probability distribution. ``stats`` and ``mstats`` now have access to a new regression method, ``siegelslopes``, a robust linear regression algorithm `scipy.stats.gaussian_kde` now has the ability to deal with weighted samples, and should have a modest improvement in performance Levy Stable Parameter Estimation, PDF, and CDF calculations are now supported for `scipy.stats.levy_stable`. The Brunner-Munzel test is now available as ``brunnermunzel`` in ``stats`` and ``mstats`` `scipy.linalg` improvements --------------------------- `scipy.linalg.lapack` now exposes the LAPACK routines using the Rectangular Full Packed storage (RFP) for upper triangular, lower triangular, symmetric, or Hermitian matrices; the upper trapezoidal fat matrix RZ decomposition routines are now available as well. Deprecated features =================== The functions ``hyp2f0``, ``hyp1f2`` and ``hyp3f0`` in ``scipy.special`` have been deprecated. Backwards incompatible changes ============================== LAPACK version 3.4.0 or later is now required. Building with Apple Accelerate is no longer supported. The function ``scipy.linalg.subspace_angles(A, B)`` now gives correct results for all angles. Before this, the function only returned correct values for those angles which were greater than pi/4. Support for the Bento build system has been removed. Bento has not been maintained for several years, and did not have good Python 3 or wheel support, hence it was time to remove it. The required signature of `scipy.optimize.lingprog` ``method=simplex`` callback function has changed. Before iteration begins, the simplex solver first converts the problem into a standard form that does not, in general, have the same variables or constraints as the problem defined by the user. Previously, the simplex solver would pass a user-specified callback function several separate arguments, such as the current solution vector ``xk``, corresponding to this standard form problem. Unfortunately, the relationship between the standard form problem and the user-defined problem was not documented, limiting the utility of the information passed to the callback function. In addition to numerous bug fix changes, the simplex solver now passes a user-specified callback function a single ``OptimizeResult`` object containing information that corresponds directly to the user-defined problem. In future releases, this ``OptimizeResult`` object may be expanded to include additional information, such as variables corresponding to the standard-form problem and information concerning the relationship between the standard-form and user-defined problems. The implementation of `scipy.sparse.random` has changed, and this affects the numerical values returned for both ``sparse.random`` and ``sparse.rand`` for some matrix shapes and a given seed. `scipy.optimize.newton` will no longer use Halley's method in cases where it negatively impacts convergence Other changes ============= Authors ======= * @endolith * @luzpaz * Hameer Abbasi + * akahard2dj + * Anton Akhmerov * Joseph Albert * alexthomas93 + * ashish + * atpage + * Blair Azzopardi + * Yoshiki Vázquez Baeza * Bence Bagi + * Christoph Baumgarten * Lucas Bellomo + * BH4 + * Aditya Bharti * Max Bolingbroke * François Boulogne * Ward Bradt + * Matthew Brett * Evgeni Burovski * Rafał Byczek + * Alfredo Canziani + * CJ Carey * Lucía Cheung + * Poom Chiarawongse + * Jeanne Choo + * Robert Cimrman * Graham Clenaghan + * cynthia-rempel + * Johannes Damp + * Jaime Fernandez del Rio * Dowon + * emmi474 + * Stefan Endres + * Thomas Etherington + * Piotr Figiel * Alex Fikl + * fo40225 + * Joseph Fox-Rabinovitz * Lars G * Abhinav Gautam + * Stiaan Gerber + * C.A.M. Gerlach + * Ralf Gommers * Todd Goodall * Lars Grueter + * Sylvain Gubian + * Matt Haberland * David Hagen * Will Handley + * Charles Harris * Ian Henriksen * Thomas Hisch + * Theodore Hu * Michael Hudson-Doyle + * Nicolas Hug + * jakirkham + * Jakob Jakobson + * James + * Jan Schlüter * jeanpauphilet + * josephmernst + * Kai + * Kai-Striega + * kalash04 + * Toshiki Kataoka + * Konrad0 + * Tom Krauss + * Johannes Kulick * Lars Grüter + * Eric Larson * Denis Laxalde * Will Lee + * Katrin Leinweber + * Yin Li + * P. L. Lim + * Jesse Livezey + * Duncan Macleod + * MatthewFlamm + * Nikolay Mayorov * Mike McClurg + * Christian Meyer + * Mark Mikofski * Naoto Mizuno + * mohmmadd + * Nathan Musoke * Anju Geetha Nair + * Andrew Nelson * Ayappan P + * Nick Papior * Haesun Park + * Ronny Pfannschmidt + * pijyoi + * Ilhan Polat * Anthony Polloreno + * Ted Pudlik * puenka * Eric Quintero * Pradeep Reddy Raamana + * Vyas Ramasubramani + * Ramon Viñas + * Tyler Reddy * Joscha Reimer * Antonio H Ribeiro * richardjgowers + * Rob + * robbystk + * Lucas Roberts + * rohan + * Joaquin Derrac Rus + * Josua Sassen + * Bruce Sharpe + * Max Shinn + * Scott Sievert * Sourav Singh * Strahinja Lukić + * Kai Striega + * Shinya SUZUKI + * Mike Toews + * Piotr Uchwat * Miguel de Val-Borro + * Nicky van Foreest * Paul van Mulbregt * Gael Varoquaux * Pauli Virtanen * Stefan van der Walt * Warren Weckesser * Joshua Wharton + * Bernhard M. Wiedemann + * Eric Wieser * Josh Wilson * Tony Xiang + * Roman Yurchak + * Roy Zywina + A total of 137 people contributed to this release. People with a "+" by their names contributed a patch for the first time. This list of names is automatically generated, and may not be fully complete. Issues closed for 1.2.0 ------------------------ * `#9520 <https://github.com/scipy/scipy/issues/9520>`__: signal.correlate with method='fft' doesn't benefit from long... * `#9547 <https://github.com/scipy/scipy/issues/9547>`__: signature of dual_annealing doesn't match other optimizers * `#9540 <https://github.com/scipy/scipy/issues/9540>`__: SciPy v1.2.0rc1 cannot be imported on Python 2.7.15 * `#1240 <https://github.com/scipy/scipy/issues/1240>`__: Allowing multithreaded use of minpack through scipy.optimize... * `#1432 <https://github.com/scipy/scipy/issues/1432>`__: scipy.stats.mode extremely slow (Trac #905) * `#3372 <https://github.com/scipy/scipy/issues/3372>`__: Please add Sphinx search field to online scipy html docs * `#3678 <https://github.com/scipy/scipy/issues/3678>`__: _clough_tocher_2d_single direction between centroids * `#4174 <https://github.com/scipy/scipy/issues/4174>`__: lobpcg "largest" option invalid? * `#5493 <https://github.com/scipy/scipy/issues/5493>`__: anderson_ksamp p-values>1 * `#5743 <https://github.com/scipy/scipy/issues/5743>`__: slsqp fails to detect infeasible problem * `#6139 <https://github.com/scipy/scipy/issues/6139>`__: scipy.optimize.linprog failed to find a feasible starting point... * `#6358 <https://github.com/scipy/scipy/issues/6358>`__: stats: docstring for `vonmises_line` points to `vonmises_line`... * `#6498 <https://github.com/scipy/scipy/issues/6498>`__: runtests.py is missing in pypi distfile * `#7426 <https://github.com/scipy/scipy/issues/7426>`__: scipy.stats.ksone(n).pdf(x) returns nan for positive values of... * `#7455 <https://github.com/scipy/scipy/issues/7455>`__: scipy.stats.ksone.pdf(2,x) return incorrect values for x near... * `#7456 <https://github.com/scipy/scipy/issues/7456>`__: scipy.special.smirnov and scipy.special.smirnovi have accuracy... * `#7492 <https://github.com/scipy/scipy/issues/7492>`__: scipy.special.kolmogorov(x)/kolmogi(p) inefficient, inaccurate... * `#7914 <https://github.com/scipy/scipy/issues/7914>`__: TravisCI not failing when it should for -OO run * `#8064 <https://github.com/scipy/scipy/issues/8064>`__: linalg.solve test crashes on Windows * `#8212 <https://github.com/scipy/scipy/issues/8212>`__: LAPACK Rectangular Full Packed routines * `#8256 <https://github.com/scipy/scipy/issues/8256>`__: differential_evolution bug converges to wrong results in complex... * `#8443 <https://github.com/scipy/scipy/issues/8443>`__: Deprecate `hyp2f0`, `hyp1f2`, and `hyp3f0`? * `#8452 <https://github.com/scipy/scipy/issues/8452>`__: DOC: ARPACK tutorial has two conflicting equations * `#8680 <https://github.com/scipy/scipy/issues/8680>`__: scipy fails compilation when building from source * `#8686 <https://github.com/scipy/scipy/issues/8686>`__: Division by zero in _trustregion.py when x0 is exactly equal... * `#8700 <https://github.com/scipy/scipy/issues/8700>`__: _MINPACK_LOCK not held when calling into minpack from least_squares * `#8786 <https://github.com/scipy/scipy/issues/8786>`__: erroneous moment values for t-distribution * `#8791 <https://github.com/scipy/scipy/issues/8791>`__: Checking COLA condition in istft should be optional (or omitted) * `#8843 <https://github.com/scipy/scipy/issues/8843>`__: imresize cannot be deprecated just yet * `#8844 <https://github.com/scipy/scipy/issues/8844>`__: Inverse Wishart Log PDF Incorrect for Non-diagonal Scale Matrix? * `#8878 <https://github.com/scipy/scipy/issues/8878>`__: vonmises and vonmises_line in stats: vonmises wrong and superfluous? * `#8895 <https://github.com/scipy/scipy/issues/8895>`__: v1.1.0 `ndi.rotate` documentation – reused parameters not filled... * `#8900 <https://github.com/scipy/scipy/issues/8900>`__: Missing complex conjugation in scipy.sparse.linalg.LinearOperator * `#8904 <https://github.com/scipy/scipy/issues/8904>`__: BUG: if zero derivative at root, then Newton fails with RuntimeWarning * `#8911 <https://github.com/scipy/scipy/issues/8911>`__: make_interp_spline bc_type incorrect input interpretation * `#8942 <https://github.com/scipy/scipy/issues/8942>`__: MAINT: Refactor `_linprog.py` and `_linprog_ip.py` to remove... * `#8947 <https://github.com/scipy/scipy/issues/8947>`__: np.int64 in scipy.fftpack.next_fast_len * `#9020 <https://github.com/scipy/scipy/issues/9020>`__: BUG: linalg.subspace_angles gives wrong results * `#9033 <https://github.com/scipy/scipy/issues/9033>`__: scipy.stats.normaltest sometimes gives incorrect returns b/c... * `#9036 <https://github.com/scipy/scipy/issues/9036>`__: Bizarre times for `scipy.sparse.rand` function with 'low' density... * `#9044 <https://github.com/scipy/scipy/issues/9044>`__: optimize.minimize(method=`trust-constr`) result dict does not... * `#9071 <https://github.com/scipy/scipy/issues/9071>`__: doc/linalg: add cho_solve_banded to see also of cholesky_banded * `#9082 <https://github.com/scipy/scipy/issues/9082>`__: eigenvalue sorting in scipy.sparse.linalg.eigsh * `#9086 <https://github.com/scipy/scipy/issues/9086>`__: signaltools.py:491: FutureWarning: Using a non-tuple sequence... * `#9091 <https://github.com/scipy/scipy/issues/9091>`__: test_spline_filter failure on 32-bit * `#9122 <https://github.com/scipy/scipy/issues/9122>`__: Typo on scipy minimization tutorial * `#9135 <https://github.com/scipy/scipy/issues/9135>`__: doc error at https://docs.scipy.org/doc/scipy/reference/tutorial/stats/discrete_poisson.… * `#9167 <https://github.com/scipy/scipy/issues/9167>`__: DOC: BUG: typo in ndimage LowLevelCallable tutorial example * `#9169 <https://github.com/scipy/scipy/issues/9169>`__: truncnorm does not work if b < a in scipy.stats * `#9250 <https://github.com/scipy/scipy/issues/9250>`__: scipy.special.tests.test_mpmath::TestSystematic::test_pcfw fails... * `#9259 <https://github.com/scipy/scipy/issues/9259>`__: rv.expect() == rv.mean() is false for rv.mean() == nan (and inf) * `#9286 <https://github.com/scipy/scipy/issues/9286>`__: DOC: Rosenbrock expression in optimize.minimize tutorial * `#9316 <https://github.com/scipy/scipy/issues/9316>`__: SLSQP fails in nested optimization * `#9337 <https://github.com/scipy/scipy/issues/9337>`__: scipy.signal.find_peaks key typo in documentation * `#9345 <https://github.com/scipy/scipy/issues/9345>`__: Example from documentation of scipy.sparse.linalg.eigs raises... * `#9383 <https://github.com/scipy/scipy/issues/9383>`__: Default value for "mode" in "ndimage.shift" * `#9419 <https://github.com/scipy/scipy/issues/9419>`__: dual_annealing off by one in the number of iterations * `#9442 <https://github.com/scipy/scipy/issues/9442>`__: Error in Defintion of Rosenbrock Function * `#9453 <https://github.com/scipy/scipy/issues/9453>`__: TST: test_eigs_consistency() doesn't have consistent results Pull requests for 1.2.0 ------------------------ * `#9526 <https://github.com/scipy/scipy/pull/9526>`__: TST: relax precision requirements in signal.correlate tests * `#9507 <https://github.com/scipy/scipy/pull/9507>`__: CI: MAINT: Skip a ckdtree test on pypy * `#9512 <https://github.com/scipy/scipy/pull/9512>`__: TST: test_random_sampling 32-bit handling * `#9494 <https://github.com/scipy/scipy/pull/9494>`__: TST: test_kolmogorov xfail 32-bit * `#9486 <https://github.com/scipy/scipy/pull/9486>`__: BUG: fix sparse random int handling * `#9550 <https://github.com/scipy/scipy/pull/9550>`__: BUG: scipy/_lib/_numpy_compat: get_randint * `#9549 <https://github.com/scipy/scipy/pull/9549>`__: MAINT: make dual_annealing signature match other optimizers * `#9541 <https://github.com/scipy/scipy/pull/9541>`__: BUG: fix SyntaxError due to non-ascii character on Python 2.7 * `#7352 <https://github.com/scipy/scipy/pull/7352>`__: ENH: add Brunner Munzel test to scipy.stats. * `#7373 <https://github.com/scipy/scipy/pull/7373>`__: BUG: Jaccard distance for all-zero arrays would return np.nan * `#7374 <https://github.com/scipy/scipy/pull/7374>`__: ENH: Add PDF, CDF and parameter estimation for Stable Distributions * `#8098 <https://github.com/scipy/scipy/pull/8098>`__: ENH: Add shgo for global optimization of NLPs. * `#8203 <https://github.com/scipy/scipy/pull/8203>`__: ENH: adding simulated dual annealing to optimize * `#8259 <https://github.com/scipy/scipy/pull/8259>`__: Option to follow original Storn and Price algorithm and its parallelisation * `#8293 <https://github.com/scipy/scipy/pull/8293>`__: ENH add ratio-of-uniforms method for rv generation to scipy.stats * `#8294 <https://github.com/scipy/scipy/pull/8294>`__: BUG: Fix slowness in stats.mode * `#8295 <https://github.com/scipy/scipy/pull/8295>`__: ENH: add Jensen Shannon distance to `scipy.spatial.distance` * `#8357 <https://github.com/scipy/scipy/pull/8357>`__: ENH: vectorize scalar zero-search-functions * `#8397 <https://github.com/scipy/scipy/pull/8397>`__: Add `fs=` parameter to filter design functions * `#8537 <https://github.com/scipy/scipy/pull/8537>`__: ENH: Implement mode parameter for spline filtering. * `#8558 <https://github.com/scipy/scipy/pull/8558>`__: ENH: small speedup for stats.gaussian_kde * `#8560 <https://github.com/scipy/scipy/pull/8560>`__: BUG: fix p-value calc of anderson_ksamp in scipy.stats * `#8614 <https://github.com/scipy/scipy/pull/8614>`__: ENH: correct p-values for stats.kendalltau and stats.mstats.kendalltau * `#8670 <https://github.com/scipy/scipy/pull/8670>`__: ENH: Require Lapack 3.4.0 * `#8683 <https://github.com/scipy/scipy/pull/8683>`__: Correcting kmeans documentation * `#8725 <https://github.com/scipy/scipy/pull/8725>`__: MAINT: Cleanup scipy.optimize.leastsq * `#8726 <https://github.com/scipy/scipy/pull/8726>`__: BUG: Fix _get_output in scipy.ndimage to support string * `#8733 <https://github.com/scipy/scipy/pull/8733>`__: MAINT: stats: A bit of clean up. * `#8737 <https://github.com/scipy/scipy/pull/8737>`__: BUG: Improve numerical precision/convergence failures of smirnov/kolmogorov * `#8738 <https://github.com/scipy/scipy/pull/8738>`__: MAINT: stats: A bit of clean up in test_distributions.py. * `#8740 <https://github.com/scipy/scipy/pull/8740>`__: BF/ENH: make minpack thread safe * `#8742 <https://github.com/scipy/scipy/pull/8742>`__: BUG: Fix division by zero in trust-region optimization methods * `#8746 <https://github.com/scipy/scipy/pull/8746>`__: MAINT: signal: Fix a docstring of a private function, and fix... * `#8750 <https://github.com/scipy/scipy/pull/8750>`__: DOC clarified description of norminvgauss in scipy.stats * `#8753 <https://github.com/scipy/scipy/pull/8753>`__: DOC: signal: Fix a plot title in the chirp docstring. * `#8755 <https://github.com/scipy/scipy/pull/8755>`__: DOC: MAINT: Fix link to the wheel documentation in developer... * `#8760 <https://github.com/scipy/scipy/pull/8760>`__: BUG: stats: boltzmann wasn't setting the upper bound. * `#8763 <https://github.com/scipy/scipy/pull/8763>`__: [DOC] Improved scipy.cluster.hierarchy documentation * `#8765 <https://github.com/scipy/scipy/pull/8765>`__: DOC: added example for scipy.stat.mstats.tmin * `#8788 <https://github.com/scipy/scipy/pull/8788>`__: DOC: fix definition of optional `disp` parameter * `#8802 <https://github.com/scipy/scipy/pull/8802>`__: MAINT: Suppress dd_real unused function compiler warnings. * `#8803 <https://github.com/scipy/scipy/pull/8803>`__: ENH: Add full_output support to optimize.newton() * `#8804 <https://github.com/scipy/scipy/pull/8804>`__: MAINT: stats cleanup * `#8808 <https://github.com/scipy/scipy/pull/8808>`__: DOC: add note about isinstance for frozen rvs * `#8812 <https://github.com/scipy/scipy/pull/8812>`__: Updated numpydoc submodule * `#8813 <https://github.com/scipy/scipy/pull/8813>`__: MAINT: stats: Fix multinomial docstrings, and do some clean up. * `#8816 <https://github.com/scipy/scipy/pull/8816>`__: BUG: fixed _stats of t-distribution in scipy.stats * `#8817 <https://github.com/scipy/scipy/pull/8817>`__: BUG: ndimage: Fix validation of the origin argument in correlate... * `#8822 <https://github.com/scipy/scipy/pull/8822>`__: BUG: integrate: Fix crash with repeated t values in odeint. * `#8832 <https://github.com/scipy/scipy/pull/8832>`__: Hyperlink DOIs against preferred resolver * `#8837 <https://github.com/scipy/scipy/pull/8837>`__: BUG: sparse: Ensure correct dtype for sparse comparison operations. * `#8839 <https://github.com/scipy/scipy/pull/8839>`__: DOC: stats: A few tweaks to the linregress docstring. * `#8846 <https://github.com/scipy/scipy/pull/8846>`__: BUG: stats: Fix logpdf method of invwishart. * `#8849 <https://github.com/scipy/scipy/pull/8849>`__: DOC: signal: Fixed mistake in the firwin docstring. * `#8854 <https://github.com/scipy/scipy/pull/8854>`__: DOC: fix type descriptors in ltisys documentation * `#8865 <https://github.com/scipy/scipy/pull/8865>`__: Fix tiny typo in docs for chi2 pdf * `#8870 <https://github.com/scipy/scipy/pull/8870>`__: Fixes related to invertibility of STFT * `#8872 <https://github.com/scipy/scipy/pull/8872>`__: ENH: special: Add the softmax function * `#8874 <https://github.com/scipy/scipy/pull/8874>`__: DOC correct gamma function in docstrings in scipy.stats * `#8876 <https://github.com/scipy/scipy/pull/8876>`__: ENH: Added TOMS Algorithm 748 as 1-d root finder; 17 test function... * `#8882 <https://github.com/scipy/scipy/pull/8882>`__: ENH: Only use Halley's adjustment to Newton if close enough. * `#8883 <https://github.com/scipy/scipy/pull/8883>`__: FIX: optimize: make jac and hess truly optional for 'trust-constr' * `#8885 <https://github.com/scipy/scipy/pull/8885>`__: TST: Do not error on warnings raised about non-tuple indexing. * `#8887 <https://github.com/scipy/scipy/pull/8887>`__: MAINT: filter out np.matrix PendingDeprecationWarning's in numpy... * `#8889 <https://github.com/scipy/scipy/pull/8889>`__: DOC: optimize: separate legacy interfaces from new ones * `#8890 <https://github.com/scipy/scipy/pull/8890>`__: ENH: Add optimize.root_scalar() as a universal dispatcher for... * `#8899 <https://github.com/scipy/scipy/pull/8899>`__: DCT-IV, DST-IV and DCT-I, DST-I orthonormalization support in... * `#8901 <https://github.com/scipy/scipy/pull/8901>`__: MAINT: Reorganize flapack.pyf.src file * `#8907 <https://github.com/scipy/scipy/pull/8907>`__: BUG: ENH: Check if guess for newton is already zero before checking... * `#8908 <https://github.com/scipy/scipy/pull/8908>`__: ENH: Make sorting optional for cKDTree.query_ball_point() * `#8910 <https://github.com/scipy/scipy/pull/8910>`__: DOC: sparse.csgraph simple examples. * `#8914 <https://github.com/scipy/scipy/pull/8914>`__: DOC: interpolate: fix equivalences of string aliases * `#8918 <https://github.com/scipy/scipy/pull/8918>`__: add float_control(precise, on) to _fpumode.c * `#8919 <https://github.com/scipy/scipy/pull/8919>`__: MAINT: interpolate: improve error messages for common `bc_type`... * `#8920 <https://github.com/scipy/scipy/pull/8920>`__: DOC: update Contributing to SciPy to say "prefer no PEP8 only... * `#8924 <https://github.com/scipy/scipy/pull/8924>`__: MAINT: special: deprecate `hyp2f0`, `hyp1f2`, and `hyp3f0` * `#8927 <https://github.com/scipy/scipy/pull/8927>`__: MAINT: special: remove `errprint` * `#8932 <https://github.com/scipy/scipy/pull/8932>`__: Fix broadcasting scale arg of entropy * `#8936 <https://github.com/scipy/scipy/pull/8936>`__: Fix (some) non-tuple index warnings * `#8937 <https://github.com/scipy/scipy/pull/8937>`__: ENH: implement sparse matrix BSR to CSR conversion directly. * `#8938 <https://github.com/scipy/scipy/pull/8938>`__: DOC: add @_ni_docstrings.docfiller in ndimage.rotate * `#8940 <https://github.com/scipy/scipy/pull/8940>`__: Update _discrete_distns.py * `#8943 <https://github.com/scipy/scipy/pull/8943>`__: DOC: Finish dangling sentence in `convolve` docstring * `#8944 <https://github.com/scipy/scipy/pull/8944>`__: MAINT: Address tuple indexing and warnings * `#8945 <https://github.com/scipy/scipy/pull/8945>`__: ENH: spatial.transform.Rotation [GSOC2018] * `#8950 <https://github.com/scipy/scipy/pull/8950>`__: csgraph Dijkstra function description rewording * `#8953 <https://github.com/scipy/scipy/pull/8953>`__: DOC, MAINT: HTTP -> HTTPS, and other linkrot fixes * `#8955 <https://github.com/scipy/scipy/pull/8955>`__: BUG: np.int64 in scipy.fftpack.next_fast_len * `#8958 <https://github.com/scipy/scipy/pull/8958>`__: MAINT: Add more descriptive error message for phase one simplex. * `#8962 <https://github.com/scipy/scipy/pull/8962>`__: BUG: sparse.linalg: add missing conjugate to _ScaledLinearOperator.adjoint * `#8963 <https://github.com/scipy/scipy/pull/8963>`__: BUG: sparse.linalg: downgrade LinearOperator TypeError to warning * `#8965 <https://github.com/scipy/scipy/pull/8965>`__: ENH: Wrapped RFP format and RZ decomposition routines * `#8969 <https://github.com/scipy/scipy/pull/8969>`__: MAINT: doc and code fixes for optimize.newton * `#8970 <https://github.com/scipy/scipy/pull/8970>`__: Added 'average' keyword for welch/csd to enable median averaging * `#8971 <https://github.com/scipy/scipy/pull/8971>`__: Better imresize deprecation warning * `#8972 <https://github.com/scipy/scipy/pull/8972>`__: MAINT: Switch np.where(c) for np.nonzero(c) * `#8975 <https://github.com/scipy/scipy/pull/8975>`__: MAINT: Fix warning-based failures * `#8979 <https://github.com/scipy/scipy/pull/8979>`__: DOC: fix description of count_sort keyword of dendrogram * `#8982 <https://github.com/scipy/scipy/pull/8982>`__: MAINT: optimize: Fixed minor mistakes in test_linprog.py (#8978) * `#8984 <https://github.com/scipy/scipy/pull/8984>`__: BUG: sparse.linalg: ensure expm casts integer inputs to float * `#8986 <https://github.com/scipy/scipy/pull/8986>`__: BUG: optimize/slsqp: do not exit with convergence on steps where... * `#8989 <https://github.com/scipy/scipy/pull/8989>`__: MAINT: use collections.abc in basinhopping * `#8990 <https://github.com/scipy/scipy/pull/8990>`__: ENH extend p-values of anderson_ksamp in scipy.stats * `#8991 <https://github.com/scipy/scipy/pull/8991>`__: ENH: Weighted kde * `#8993 <https://github.com/scipy/scipy/pull/8993>`__: ENH: spatial.transform.Rotation.random [GSOC 2018] * `#8994 <https://github.com/scipy/scipy/pull/8994>`__: ENH: spatial.transform.Slerp [GSOC 2018] * `#8995 <https://github.com/scipy/scipy/pull/8995>`__: TST: time.time in test * `#9007 <https://github.com/scipy/scipy/pull/9007>`__: Fix typo in fftpack.rst * `#9013 <https://github.com/scipy/scipy/pull/9013>`__: Added correct plotting code for two sided output from spectrogram * `#9014 <https://github.com/scipy/scipy/pull/9014>`__: BUG: differential_evolution with inf objective functions * `#9017 <https://github.com/scipy/scipy/pull/9017>`__: BUG: fixed #8446 corner case for asformat(array|dense) * `#9018 <https://github.com/scipy/scipy/pull/9018>`__: MAINT: _lib/ccallback: remove unused code * `#9021 <https://github.com/scipy/scipy/pull/9021>`__: BUG: Issue with subspace_angles * `#9022 <https://github.com/scipy/scipy/pull/9022>`__: DOC: Added "See Also" section to lombscargle docstring * `#9034 <https://github.com/scipy/scipy/pull/9034>`__: BUG: Fix tolerance printing behavior, remove meaningless tol... * `#9035 <https://github.com/scipy/scipy/pull/9035>`__: TST: improve signal.bsplines test coverage * `#9037 <https://github.com/scipy/scipy/pull/9037>`__: ENH: add a new init method for k-means * `#9039 <https://github.com/scipy/scipy/pull/9039>`__: DOC: Add examples to fftpack.irfft docstrings * `#9048 <https://github.com/scipy/scipy/pull/9048>`__: ENH: scipy.sparse.random * `#9050 <https://github.com/scipy/scipy/pull/9050>`__: BUG: scipy.io.hb_write: fails for matrices not in csc format * `#9051 <https://github.com/scipy/scipy/pull/9051>`__: MAINT: Fix slow sparse.rand for k < mn/3 (#9036). * `#9054 <https://github.com/scipy/scipy/pull/9054>`__: MAINT: spatial: Explicitly initialize LAPACK output parameters. * `#9055 <https://github.com/scipy/scipy/pull/9055>`__: DOC: Add examples to scipy.special docstrings * `#9056 <https://github.com/scipy/scipy/pull/9056>`__: ENH: Use one thread in OpenBLAS * `#9059 <https://github.com/scipy/scipy/pull/9059>`__: DOC: Update README with link to Code of Conduct * `#9060 <https://github.com/scipy/scipy/pull/9060>`__: BLD: remove support for the Bento build system. * `#9062 <https://github.com/scipy/scipy/pull/9062>`__: DOC add sections to overview in scipy.stats * `#9066 <https://github.com/scipy/scipy/pull/9066>`__: BUG: Correct "remez" error message * `#9069 <https://github.com/scipy/scipy/pull/9069>`__: DOC: update linalg section of roadmap for LAPACK versions. * `#9079 <https://github.com/scipy/scipy/pull/9079>`__: MAINT: add spatial.transform to refguide check; complete some... * `#9081 <https://github.com/scipy/scipy/pull/9081>`__: MAINT: Add warnings if pivot value is close to tolerance in linprog(method='simplex') * `#9084 <https://github.com/scipy/scipy/pull/9084>`__: BUG fix incorrect p-values of kurtosistest in scipy.stats * `#9095 <https://github.com/scipy/scipy/pull/9095>`__: DOC: add sections to mstats overview in scipy.stats * `#9096 <https://github.com/scipy/scipy/pull/9096>`__: BUG: Add test for Stackoverflow example from issue 8174. * `#9101 <https://github.com/scipy/scipy/pull/9101>`__: ENH: add Siegel slopes (robust regression) to scipy.stats * `#9105 <https://github.com/scipy/scipy/pull/9105>`__: allow resample_poly() to output float32 for float32 inputs. * `#9112 <https://github.com/scipy/scipy/pull/9112>`__: MAINT: optimize: make trust-constr accept constraint dict (#9043) * `#9118 <https://github.com/scipy/scipy/pull/9118>`__: Add doc entry to cholesky_banded * `#9120 <https://github.com/scipy/scipy/pull/9120>`__: eigsh documentation parameters * `#9125 <https://github.com/scipy/scipy/pull/9125>`__: interpolative: correctly reconstruct full rank matrices * `#9126 <https://github.com/scipy/scipy/pull/9126>`__: MAINT: Use warnings for unexpected peak properties * `#9129 <https://github.com/scipy/scipy/pull/9129>`__: BUG: Do not catch and silence KeyboardInterrupt * `#9131 <https://github.com/scipy/scipy/pull/9131>`__: DOC: Correct the typo in scipy.optimize tutorial page * `#9133 <https://github.com/scipy/scipy/pull/9133>`__: FIX: Avoid use of bare except * `#9134 <https://github.com/scipy/scipy/pull/9134>`__: DOC: Update of 'return_eigenvectors' description * `#9137 <https://github.com/scipy/scipy/pull/9137>`__: DOC: typo fixes for discrete Poisson tutorial * `#9139 <https://github.com/scipy/scipy/pull/9139>`__: FIX: Doctest failure in optimize tutorial * `#9143 <https://github.com/scipy/scipy/pull/9143>`__: DOC: missing sigma in Pearson r formula * `#9145 <https://github.com/scipy/scipy/pull/9145>`__: MAINT: Refactor linear programming solvers * `#9149 <https://github.com/scipy/scipy/pull/9149>`__: FIX: Make scipy.odr.ODR ifixx equal to its data.fix if given * `#9156 <https://github.com/scipy/scipy/pull/9156>`__: DOC: special: Mention the sigmoid function in the expit docstring. * `#9160 <https://github.com/scipy/scipy/pull/9160>`__: Fixed a latex delimiter error in levy() * `#9170 <https://github.com/scipy/scipy/pull/9170>`__: DOC: correction / update of docstrings of distributions in scipy.stats * `#9171 <https://github.com/scipy/scipy/pull/9171>`__: better description of the hierarchical clustering parameter * `#9174 <https://github.com/scipy/scipy/pull/9174>`__: domain check for a < b in stats.truncnorm * `#9175 <https://github.com/scipy/scipy/pull/9175>`__: DOC: Minor grammar fix * `#9176 <https://github.com/scipy/scipy/pull/9176>`__: BUG: CloughTocher2DInterpolator: fix miscalculation at neighborless... * `#9177 <https://github.com/scipy/scipy/pull/9177>`__: BUILD: Document the "clean" target in the doc/Makefile. * `#9178 <https://github.com/scipy/scipy/pull/9178>`__: MAINT: make refguide-check more robust for printed numpy arrays * `#9186 <https://github.com/scipy/scipy/pull/9186>`__: MAINT: Remove np.ediff1d occurence * `#9188 <https://github.com/scipy/scipy/pull/9188>`__: DOC: correct typo in extending ndimage with C * `#9190 <https://github.com/scipy/scipy/pull/9190>`__: ENH: Support specifying axes for fftconvolve * `#9192 <https://github.com/scipy/scipy/pull/9192>`__: MAINT: optimize: fixed @pv style suggestions from #9112 * `#9200 <https://github.com/scipy/scipy/pull/9200>`__: Fix make_interp_spline(..., k=0 or 1, axis<0) * `#9201 <https://github.com/scipy/scipy/pull/9201>`__: BUG: sparse.linalg/gmres: use machine eps in breakdown check * `#9204 <https://github.com/scipy/scipy/pull/9204>`__: MAINT: fix up stats.spearmanr and match mstats.spearmanr with... * `#9206 <https://github.com/scipy/scipy/pull/9206>`__: MAINT: include benchmarks and dev files in sdist. * `#9208 <https://github.com/scipy/scipy/pull/9208>`__: TST: signal: bump bsplines test tolerance for complex data * `#9210 <https://github.com/scipy/scipy/pull/9210>`__: TST: mark tests as slow, fix missing random seed * `#9211 <https://github.com/scipy/scipy/pull/9211>`__: ENH: add capability to specify orders in pade func * `#9217 <https://github.com/scipy/scipy/pull/9217>`__: MAINT: Include ``success`` and ``nit`` in OptimizeResult returned... * `#9222 <https://github.com/scipy/scipy/pull/9222>`__: ENH: interpolate: Use scipy.spatial.distance to speed-up Rbf * `#9229 <https://github.com/scipy/scipy/pull/9229>`__: MNT: Fix Fourier filter double case * `#9233 <https://github.com/scipy/scipy/pull/9233>`__: BUG: spatial/distance: fix pdist/cdist performance regression... * `#9234 <https://github.com/scipy/scipy/pull/9234>`__: FIX: Proper suppression * `#9235 <https://github.com/scipy/scipy/pull/9235>`__: BENCH: rationalize slow benchmarks + miscellaneous fixes * `#9238 <https://github.com/scipy/scipy/pull/9238>`__: BENCH: limit number of parameter combinations in spatial.*KDTree... * `#9239 <https://github.com/scipy/scipy/pull/9239>`__: DOC: stats: Fix LaTeX markup of a couple distribution PDFs. * `#9241 <https://github.com/scipy/scipy/pull/9241>`__: ENH: Evaluate plateau size during peak finding * `#9242 <https://github.com/scipy/scipy/pull/9242>`__: ENH: stats: Implement _ppf and _logpdf for crystalball, and do... * `#9246 <https://github.com/scipy/scipy/pull/9246>`__: DOC: Properly render versionadded directive in HTML documentation * `#9255 <https://github.com/scipy/scipy/pull/9255>`__: DOC: mention RootResults in optimization reference guide * `#9260 <https://github.com/scipy/scipy/pull/9260>`__: TST: relax some tolerances so tests pass with x87 math * `#9264 <https://github.com/scipy/scipy/pull/9264>`__: TST Use assert_raises "match" parameter instead of the "message"... * `#9267 <https://github.com/scipy/scipy/pull/9267>`__: DOC: clarify expect() return val when moment is inf/nan * `#9272 <https://github.com/scipy/scipy/pull/9272>`__: DOC: Add description of default bounds to linprog * `#9277 <https://github.com/scipy/scipy/pull/9277>`__: MAINT: sparse/linalg: make test deterministic * `#9278 <https://github.com/scipy/scipy/pull/9278>`__: MAINT: interpolate: pep8 cleanup in test_polyint * `#9279 <https://github.com/scipy/scipy/pull/9279>`__: Fixed docstring for resample * `#9280 <https://github.com/scipy/scipy/pull/9280>`__: removed first check for float in get_sum_dtype * `#9281 <https://github.com/scipy/scipy/pull/9281>`__: BUG: only accept 1d input for bartlett / levene in scipy.stats * `#9282 <https://github.com/scipy/scipy/pull/9282>`__: MAINT: dense_output and t_eval are mutually exclusive inputs * `#9283 <https://github.com/scipy/scipy/pull/9283>`__: MAINT: add docs and do some cleanups in interpolate.Rbf * `#9288 <https://github.com/scipy/scipy/pull/9288>`__: Run distance_transform_edt tests on all types * `#9294 <https://github.com/scipy/scipy/pull/9294>`__: DOC: fix the formula typo * `#9298 <https://github.com/scipy/scipy/pull/9298>`__: MAINT: optimize/trust-constr: restore .niter attribute for backward-compat * `#9299 <https://github.com/scipy/scipy/pull/9299>`__: DOC: clarification of default rvs method in scipy.stats * `#9301 <https://github.com/scipy/scipy/pull/9301>`__: MAINT: removed unused import sys * `#9302 <https://github.com/scipy/scipy/pull/9302>`__: MAINT: removed unused imports * `#9303 <https://github.com/scipy/scipy/pull/9303>`__: DOC: signal: Refer to fs instead of nyq in the firwin docstring. * `#9305 <https://github.com/scipy/scipy/pull/9305>`__: ENH: Added Yeo-Johnson power transformation * `#9306 <https://github.com/scipy/scipy/pull/9306>`__: ENH - add dual annealing * `#9309 <https://github.com/scipy/scipy/pull/9309>`__: ENH add the yulesimon distribution to scipy.stats * `#9317 <https://github.com/scipy/scipy/pull/9317>`__: Nested SLSQP bug fix. * `#9320 <https://github.com/scipy/scipy/pull/9320>`__: MAINT: stats: avoid underflow in stats.geom.ppf * `#9326 <https://github.com/scipy/scipy/pull/9326>`__: Add example for Rosenbrock function * `#9332 <https://github.com/scipy/scipy/pull/9332>`__: Sort file lists * `#9340 <https://github.com/scipy/scipy/pull/9340>`__: Fix typo in find_peaks documentation * `#9343 <https://github.com/scipy/scipy/pull/9343>`__: MAINT Use np.full when possible * `#9344 <https://github.com/scipy/scipy/pull/9344>`__: DOC: added examples to docstring of dirichlet class * `#9346 <https://github.com/scipy/scipy/pull/9346>`__: DOC: Fix import of scipy.sparse.linalg in example (#9345) * `#9350 <https://github.com/scipy/scipy/pull/9350>`__: Fix interpolate read only * `#9351 <https://github.com/scipy/scipy/pull/9351>`__: MAINT: special.erf: use the x->-x symmetry * `#9356 <https://github.com/scipy/scipy/pull/9356>`__: Fix documentation typo * `#9358 <https://github.com/scipy/scipy/pull/9358>`__: DOC: improve doc for ksone and kstwobign in scipy.stats * `#9362 <https://github.com/scipy/scipy/pull/9362>`__: DOC: 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5 4

fiscal sponsorship agreement with NumFOCUS
by Ralf Gommers 29 Dec '18

29 Dec '18

Hi all, To start with the idea: I propose that SciPy applies for comprehensive project sponsorship with NumFOCUS, and sign a fiscal sponsorship agreement (FSA) to that effect. Why? ---- We're already an "affiliated project", which lets us participate in the small development grants program, the NumFOCUS project mailing list and Slack channel, and a few other benefits. The main difference that comprehensive sponsorship will make is that it will allow us to accept donations, grants and other kinds of funding as a project. In addition we get funding for a representative of the project to attend the yearly NumFOCUS Summit, some hours of high-quality legal help in case we need that (for example in case of licensing questions), and probably a few other things that I'm forgetting right now. NumFOCUS sets a higher bar for comprehensive sponsorship than for affiliation, but we should easily clear that bar. We'll be joining most other core scientific Python projects, who are already sponsored [1]. I'll also steal some language from Nathaniel when he made the same proposal for NumPy [2]: The basic idea here is that there are times when you really need some kind of corporation to represent the project -- the legal system for better or worse does not understand "a bunch of folks on a mailing list" as a legal entity capable of accepting donations, or holding funds or other assets like domain names. The obvious solution is to incorporate a company to represent the project -- but incorporating a company involves lots of super-annoying paperwork. (Like, *super* annoying.) So a standard trick is that a single non-profit corporation acts as an umbrella organization providing these services to multiple projects at once, and this is called "fiscal sponsorship". You can read more about it here: https://en.wikipedia.org/wiki/Fiscal_sponsorship How? ---- We form a subcommittee of 5 people that will sign the sponsorship agreement. Those people mostly should be part of the SciPy Steering Council; there can be an external member. The job of that group is basically to interface with NumFOCUS (in practice there will be 1-2 people as first contacts), and to ensure that if we use funds, that they are used in agreement with the mission and nonprofit status of NumFOCUS. Once we have those 5 people, we can send in a formal application. In practice that takes very little time - probably no more than an hour per year, except for the 1-2 first contacts (they get 1-2 emails per month that need responding to). For more background and details on the how and why, see https://numfocus.org/information-fiscal-sponsorship. Thoughts? Questions? Volunteers to be on the subcommittee? Cheers, Ralf [1] https://numfocus.org/sponsored-projects [2] https://mail.python.org/pipermail/numpy-discussion/2015-October/073889.html

7 7

ANN: SfePy 2018.4
by Robert Cimrman 27 Dec '18

27 Dec '18

I am pleased to announce release 2018.4 of SfePy. Description ----------- SfePy (simple finite elements in Python) is a software for solving systems of coupled partial differential equations by the finite element method or by the isogeometric analysis (limited support). It is distributed under the new BSD license. Home page: http://sfepy.org Mailing list: https://mail.python.org/mm3/mailman3/lists/sfepy.python.org/ Git (source) repository, issue tracker: https://github.com/sfepy/sfepy Highlights of this release -------------------------- - better support for eigenvalue problems - improved MUMPS solver interface - support for logging and plotting of complex values For full release notes see [1]. Cheers, Robert Cimrman [1] http://docs.sfepy.org/doc/release_notes.html#id1 --- Contributors to this release in alphabetical order: Robert Cimrman Vladimir Lukes Matyas Novak Jan Heczko Lubos Kejzlar

1 0

GitHub services are deprecated - switch to app/webhook
by Ilhan Polat 24 Dec '18

24 Dec '18

As of 31-jan-2019 github will stop the services hence Travis CI runs are affected from this. https://developer.github.com/changes/2018-04-25-github-services-deprecation/ At the same time Travis is moving from .org to .com with renewed service which provides the App and `checks` functionality. https://docs.travis-ci.com/user/legacy-services-to-github-apps-migration-gu… I don't know if SciPy is eligible for automigration but can be as easy as clicking a button if it is so. Since this is only for the admin/owner access level users, gentle reminder about this detail.

3 4

NumPy 1.16.0rc1 released
by Charles R Harris 21 Dec '18

21 Dec '18

Hi All, On behalf of the NumPy team I'm pleased to announce the release of NumPy 1.16.0rc1. This is the last NumPy release to support Python 2.7 and will be maintained as a long term release with bug fixes until 2020. This release has seen a lot of refactoring and features many bug fixes, improved code organization, and better cross platform compatibility. Not all of these improvements will be visible to users, but they should help make maintenance easier going forward. Highlights are - Experimental support for overriding numpy functions in downstream projects. - The matmul function is now a ufunc and can be overridden using __array_ufunc__. - Improved support for the ARM and POWER architectures. - Improved support for AIX and PyPy. - Improved interoperation with ctypes. - Improved support for PEP 3118. The supported Python versions are 2.7 and 3.5-3.7, support for 3.4 has been dropped. The wheels on PyPI are linked with OpenBLAS v0.3.4+, which should fix the known threading issues found in previous OpenBLAS versions. Downstream developers building this release should use Cython >= 0.29 and, if linking OpenBLAS, OpenBLAS > v0.3.4. Wheels for this release can be downloaded from PyPI <https://pypi.org/project/numpy/1.16.0rc1/>, source archives are available from Github <https://github.com/numpy/numpy/releases/tag/v1.16.0rc1>. *Contributors* A total of 111 people contributed to this release. People with a "+" by their names contributed a patch for the first time. - Alan Fontenot + - Allan Haldane - Alon Hershenhorn + - Alyssa Quek + - Andreas Nussbaumer + - Anner + - Anthony Sottile + - Antony Lee - Ayappan P + - Bas van Schaik + - C.A.M. Gerlach + - Charles Harris - Chris Billington - Christian Clauss - Christoph Gohlke - Christopher Pezley + - Daniel B Allan + - Daniel Smith - Dawid Zych + - Derek Kim + - Dima Pasechnik + - Edgar Giovanni Lepe + - Elena Mokeeva + - Elliott Sales de Andrade + - Emil Hessman + - Eric Schles + - Eric Wieser - Giulio Benetti + - Guillaume Gautier + - Guo Ci - Heath Henley + - Isuru Fernando + - J. Lewis Muir + - Jack Vreeken + - Jaime Fernandez - James Bourbeau - Jeff VanOss - Jeffrey Yancey + - Jeremy Chen + - Jeremy Manning + - Jeroen Demeyer - John Darbyshire + - John Zwinck - Jonas Jensen + - Joscha Reimer + - Juan Azcarreta + - Julian Taylor - Kevin Sheppard - Krzysztof Chomski + - Kyle Sunden - Lars Grüter - Lilian Besson + - MSeifert04 - Mark Harfouche - Marten van Kerkwijk - Martin Thoma - Matt Harrigan + - Matthew Bowden + - Matthew Brett - Matthias Bussonnier - Matti Picus - Max Aifer + - Michael Hirsch, Ph.D + - Michael James Jamie Schnaitter + - MichaelSaah + - Mike Toews - Minkyu Lee + - Mircea Akos Bruma + - Mircea-Akos Brumă + - Moshe Looks + - Muhammad Kasim + - Nathaniel J. Smith - Nikita Titov + - Paul Müller + - Paul van Mulbregt - Pauli Virtanen - Pierre Glaser + - Pim de Haan - Ralf Gommers - Robert Kern - Robin Aggleton + - Rohit Pandey + - Roman Yurchak + - Ryan Soklaski - Sebastian Berg - Sho Nakamura + - Simon Gibbons - Stan Seibert + - Stefan Otte - Stefan van der Walt - Stephan Hoyer - Stuart Archibald - Taylor Smith + - Tim Felgentreff + - Tim Swast + - Tim Teichmann + - Toshiki Kataoka - Travis Oliphant - Tyler Reddy - Uddeshya Singh + - Warren Weckesser - Weitang Li + - Wenjamin Petrenko + - William D. Irons - Yannick Jadoul + - Yaroslav Halchenko - Yug Khanna + - Yuji Kanagawa + - Yukun Guo + - lerbuke + - @ankokumoyashi + Cheers, Charles Harris

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PyData/Sparse Webinar Hosted by Quansight
by Hameer Abbasi 20 Dec '18

20 Dec '18

Hello, everyone! I’ll be speaking about PyData/Sparse in a webinar hosted by Quansight. It’ll include a project demo, in case you’re interested, as well as the directions the project can take. You can register for the webinar at https://app.livestorm.co/quansight/ Best Regards, Hameer Abbasi

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ANN: PyData/Sparse 0.6.0
by Hameer Abbasi 19 Dec '18

19 Dec '18

Hi everyone, Apologies in advance for the cross-post. On behalf of all the contributors, I’m pleased to announce that PyData/Sparse 0.6.0 has been released. The wheel is up on PyPI and the conda-forge package should be up before the end of the day. The wheels and sources can be found at: https://github.com/pydata/sparse/releases/tag/0.6.0 https://pypi.org/project/sparse/#files The documentation for this package is available at http://sparse.pydata.org/en/0.6.0/ This is mainly a bug-fix release. The changelog can be found at: http://sparse.pydata.org/en/latest/changelog.html The main highlight is that we changed the default behaviour to raise an exception when using functions meant for NumPy arrays which would densify the array. This is also configurable via the SPARSE_AUTO_DENSIFY environment variable before importing the module. Best Regards, Hameer Abbasi

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LinearOperator and new solver
by Matteo Ravasi 14 Dec '18

14 Dec '18

Dear Scipy-dev community, I would like to bring forward two proposals related to your scipy.sparse.linalg.LinearOperator class and linear solvers in general: LinearOperator: I am the main developer and maintainer of the PyLops library that has been recently open-sourced (git repo: https://github.com/Statoil/pylops, doc: https://pylops.readthedocs.io/en/latest/index.html). As you will see I heavily rely on your LinearOperator class and build on top of it creating various basic linear operators and more specific ones for signal processing and geoscience applications of inverse problems. When I started working on this I was surprised to find very little information and examples online on how to use your LinearOperator and the possibility to subclass it was only mentioned in one line of your documentation and nowhere else online to my knowledge. I wonder if you would consider pointing to PyLops in your documentation to facilitate users i) to know how to get started with LinearOperator, ii) avoid rebuilding the wheel if what they are after can be done or is done already in PyLops. I find your class fantastic and saved me lots of time but I feel is one of those things that few people realize exist and understand how to use it ;) Solvers: I would like to know if you would be interested to add a new solver to your suite of linear solvers. Specifically the solver is called SPGL1 and it is a very popular solver in the mathematical community for sparsity-promoting linear optimization. It was developed at UBC (University of British Columbia) https://www.cs.ubc.ca/~mpf/spgl1/ and has a Matlab open-source code. I have been thinking about porting it to python for a while and recently another python user started a git repo called https://github.com/drrelyea/SPGL1_python_port. However this is something I would more naturally see as part of scipy instead of an indipendent library. I am willing to contact the author of this repo and help him out directly to finish the porting and make it to (or close to) scipy standards... so far the code and repo is not ready to be included in professional code like scipy in my opinion. But I would like to hear what you think, if you would consider adding this to scipy once in good shape or if you think this is not in the scope of scipy library :) Looking forward to hearing from you, Best wishes MR

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