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path: root/numpy/polynomial/_polybase.py
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* DOC: Add example for Polynomial.degree(). (#23530)Stefanie Molin2023-04-131-0/+22
| | | | | Include additional example about 0-coefficients and the trim method. Co-authored-by: Ross Barnowski <rossbar@berkeley.edu>
* DOC: Update wording and xref domain from polynomial roots docstring #23374 ↵Younes2023-04-101-1/+1
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* BUG: Polynomials now copy properly (#22669)Matteo Raso2022-11-251-1/+1
| | | | | | | | On line 502, self.symbol.copy() was called, which causes an AttributeError, since self.symbol is a string, so it doesn't have a copy() method. To fix it, I simply removed the copy() and directly assigned the string.
* MAINT: limit the number of decimals in Polynomial representation (#21654)Lev Maximov2022-06-141-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * limit the number of decimals in Polynomial representation * tests pass * parenthesize exponential notation in polynomials * fixed a long line warning * added polynomial printoptions tests * polynomial printoptions typo fixed * made switch to exp notation in polynomial display more natural * added a test on switching polynomials to exp notation * fixed linter errors/warnings * support for nanstr and infstr printoptions in polynomials * 10^8 threshold for switching to exp notation when displaying polynomials * merged in PR #21696 fixing issue #21695 * made linter happy * made some docstring tests pass * fixed the docs Co-authored-by: Lev Maximov <lev.maximov@gmail.com>
* ENH: Add support for symbol to polynomial package (#16154)Ross Barnowski2022-06-011-36/+79
| | | | | | | Adds a symbol attribute to the polynomials from the np.polynomial package to allow the user to control/modify the symbol used to represent the independent variable for a polynomial expression. This attribute corresponds to the variable attribute of the poly1d class from the old np.lib.polynomial module. Marked as draft for now as it depends on #15666 - all _str* and _repr* methods of ABCPolyBase and derived classes would need to be modified (and tested) to support this change. Co-authored-by: Warren Weckesser <warren.weckesser@gmail.com>
* Merge pull request #19905 from Samyak2/polynomial-fit-doc-formattingCharles Harris2021-09-211-5/+5
|\ | | | | DOC: fix docstring formatting of polynomial fit method return values.
| * DOC: fix formatting of a return value of polynomial fit methodsSamyak S Sarnayak2021-09-211-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes #19897 The 2nd return value of the following methods/functions were badly formatted and the list was all appearing in a single line. Changed them to separate points which are rendered nicely. - numpy.polyfit - numpy.ma.polyfit - numpy.polynomial.polynomial.polyfit - numpy.polynomial.polynomial.Polynomial.fit - numpy.polynomial.chebyshev.chebfit - numpy.polynomial.chebyshev.Chebyshev.fit - numpy.polynomial.hermite.hermfit - numpy.polynomial.hermite.Hermite.fit - numpy.polynomial.hermite_e.hermefit - numpy.polynomial.hermite_e.HermiteE.fit - numpy.polynomial.laguerre.lagfit - numpy.polynomial.laguerre.Laguerre.fit - numpy.polynomial.legendre.legfit - numpy.polynomial.legendre.Legendre.fit Also fixed erroneous links to `numpy.full` which were actually referring to the `full` argument. Changed those to code strings (double backticks) from single backticks. Also fixed formatting issues in the 3rd return value of numpy.polyfit (and hence also numpy.ma.polyfit).
* | DOC: Typos found by codespellDimitri Papadopoulos2021-09-211-1/+1
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* DOC: Adjust polyfit doc to clarify the meaning of w (#18421)Mike Jarvis2021-06-081-5/+5
| | | | | | | | | | | | | | | | | * DOC: Adjust polyfit doc to clarify the meaning of w cov='unscaled', in particular, had inconsistently referred to a weight of 1/sigma**2, while the doc for w says it should be equal to 1/sigma. This change clarifies w to comport with more typical meanings of weights in weighted least squares, and makes clear that cov='unscaled' is appropriate when the weight w**2 = 1/sigma**2. See Issue #5261 for more discussion of the errors/confusion in the previous doc string. * Update doc text for w in all polynomial module fit functions Co-authored-by: Stefan van der Walt <sjvdwalt@gmail.com> Co-authored-by: Ross Barnowski <rossbar@berkeley.edu>
* DOC: cleanup of numpy/polynomial.Matthias Bussonnier2021-01-281-3/+0
| | | | | Numpydoc format says that the colon need o be omitted if there is no type, there were also some empty Examples Sections
* DOC: Avoid using "set of" when talking about an ordered list.Antony Lee2020-12-291-1/+1
| | | | | | | | | | | | ... or when the input isn't/cannot be a set. I left a few usages, e.g. in random sampling, where "set" is reasonable as informal description of an array as the order doesn't matter; however, for e.g. np.gradient the order of the returned list is clearly important, so "set" is wrong. Also some other minor doc edits noticed during the grepping: using `shape` instead of `form` in `cov` is consistent with most other places; the wording in `Polynomial.trim` now matches other methods on the same class.
* DOC: Update reference to verbatim in a few location.Matthias Bussonnier2020-12-281-1/+1
| | | | | Single backticks default role is reference, while here it seem to be for verbatim. Fix it in a couple of places.
* MAINT: Chain exceptions in "_polybase.py" (#17453)Sahil Siddiq2020-10-071-4/+4
| | | * Removed "from" keyword and changed "raise e" to "raise"
* MAINT: Remove nickname from polynomial classes. (gh-16589)Ross Barnowski2020-07-081-5/+0
| | | | | | | | | | | | | | | | * MAINT: Remove nickname from polynomial classes. The convenience classes derived from ABCPolyBase had a nickname attribute that was only used internally in the previous implementation of __str__. After the overhaul of __str__ in #15666, this attr is no longer used. * DOC: Add release note. Add release note to notify users of removal of the abstract property, and highlight users that may be affected by the change. * DOC: fixed rST in release note
* DOC: add the number of sample points as suggestedWojciech Rzadkowski2020-06-081-1/+1
| | | Co-authored-by: Ross Barnowski <rossbar@berkeley.edu>
* DOC: expand the docstring as suggested in reviewWojciech Rzadkowski2020-06-051-1/+1
| | | Co-authored-by: Ross Barnowski <rossbar@berkeley.edu>
* DOC: mention only single-polynomial fitting in np.polynomial.Polynomial.fit()Wojciech Rzadkowski2020-06-051-4/+2
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* STY: Move comment outside of try/except.Ross Barnowski2020-05-131-3/+3
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* Handle TypeError in _generate_str for coefs.Ross Barnowski2020-05-131-3/+9
| | | | | | Add a fallback for TypeErrors that are raised when attempting to compare arbitrary elements (e.g. strings or Python complex) to 0 in _generate_str.
* ENH: Improved __str__, __format__ for polynomialsRoss Barnowski2020-05-071-3/+107
| | | | | | | | | | | | | | | | | | | | | | | | Changes the printing style of instances of the convenience classes in the polynomial package to a more "human-readable" format. __str__ has been modified and __format__ added to ABCPolyBase, modifying the string representation of polynomial instances, e.g. when printed. __repr__ and the _repr_latex method (which is used in the Jupyter environment are unchanged. Two print formats have been added: 'unicode' and 'ascii'. 'unicode' is the default mode on *nix systems, and uses unicode values for numeric subscripts and superscripts in the polynomial expression. The 'ascii' format is the default on Windows (due to font considerations) and uses Python-style syntax to represent powers, e.g. x**2. The default printing style can be controlled at the package-level with the set_default_printstyle function. The ABCPolyBase.__str__ has also been made to respect the linewidth printoption. Other parameters from the printoptions dictionary are not used. Co-Authored-By: Warren Weckesser <warren.weckesser@gmail.com> Co-authored-by: Eric Wieser <wieser.eric@gmail.com>
* Merge pull request #15434 from notanton/maintenance-fstringsCharles Harris2020-01-261-24/+18
|\ | | | | MAINT: Updated polynomial to use fstrings
| * Updated files in polynomial/ to use fstringsAnton Ritter-Gogerly2020-01-271-24/+18
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* | MAINT: Remove Python2 workaroundsSeth Troisi2020-01-231-4/+0
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* MAINT: Remove unnecessary 'from __future__ import ...' statementsJon Dufresne2020-01-031-2/+0
| | | | | As numpy is Python 3 only, these import statements are now unnecessary and don't alter runtime behavior.
* MAINT: Fix ABCPolyBase in various waysEric Wieser2019-03-021-31/+46
| | | | | | | | | | | This previously: * Did not indicate the arguments in the abstract methods * Did not actually use the `abc` mechanism at all on python 3 (`__metaclass__` does not work any more) * Used the now-deprecated `@abstractproperty` This didn't cause any runtime problems, but does confuse LGTM, and was using the `abc` module incorrectly. This uses python3-only features of the abc module, so can't be backported.
* MAINT: remove surviving, unused, list comprehension (#11843)Jeff2018-09-031-7/+0
| | | | | | This variable is never used, and shows signs of being leftover from a previous implementation. Introduced in gh-11528. Closes gh-11842
* Merge pull request #11850 from jeffyancey/update-polybase-commentCharles Harris2018-08-311-1/+1
|\ | | | | DOC: add comment to remove fn after python 2 support is dropped
| * DOC: closes #11845Jeffrey Yancey2018-08-311-1/+1
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* | DOC: Polybase augmented assignment notes (#11806)Jeff2018-08-261-4/+1
|/ | | | | | | | | | | | | | * Add augmented assignment for supported operations Add augmented assignments for `+=`, `-=`, `*=`, `/=`, `%=`, and `**=`. * correct idiv and imod * remove augomented operationa. add notes. Explicitly state the intention that all instances of a polynomial baseclass are immutable. * fix typo, remove Note from _polybase
* DOC: Small docstring fixes for old polyfit.Charles Harris2018-08-151-1/+1
| | | | | * Remove misleading reference to numpy/polynomial/polynomial/polyfit. * Add missing period in numpy/polynomial/_polybase.py
* DOC: recommend polynomial.Polynomial over np.polyfit (#11733)Matti Picus2018-08-141-1/+3
| | | | | | | | | | * DOC: reccomend polynomail.Polynomial over np.polyfit * update from review * update from review, fix links * fix from review
* ENH: Add support for ipython latex printing to polynomialEric Wieser2018-08-121-2/+89
| | | | | | | | | | | | | | | Choices made, and the alternatives rejected (for no particularly strong reason): 1. Show terms in ascending order, to match their internal representation * alternative: descending, to match convention 2. Shows 0 terms in gray * alternative: omit entirely * alternative: show normally to aid comparison 3. Write each term as `basis(ax + b) * alternative: write as `basis(u) ... where u = ax + b` * alternative: show the normalized polynomial In future it would perhaps make sense to expose these options to the end user
* ENH: Show domain and window as kwargs in reprEric Wieser2017-08-101-1/+1
| | | | Also, update the docs with this new repr
* BUG: Only propagate TypeError from where we throw itEric Wieser2017-06-031-11/+5
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* BUG: KeyboardInterrupt is swallowed all over the placeEric Wieser2017-06-031-8/+8
| | | | Bare except is very rarely the right thing
* ENH: Use `__array_ufunc__ = None` in polynomial convenience classes.Charles Harris2017-04-271-2/+2
| | | | | | | | Add `__array_ufunc__ = None` to ABCPolyBase. This ensures that polynomial convenience classes will not participate in ufuncs and will have priority when combined with an ndarray in a Python binary operator. `__array_priority__` is removed, as it is no longer needed.
* DOC: change version references from x.y to x.y.zPierre de Buyl2016-09-071-1/+1
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* DOC: change Numpy to NumPy in dosctrings and commentsPierre de Buyl2016-09-061-1/+1
| | | | The strings in error messages were left untouched
* DOC: Fix some incorrect RST definition listsEndolith2016-05-111-2/+2
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* MAINT: Refactor polynomial leastsquares fits.Charles Harris2016-01-191-8/+5
| | | | | | | * Rewrite the documentation for `deg`. * Check that the passed degrees are int and raise if not. * Do not accept `deg` arguments that do not convert as 0-D or 1-D. * Sort passed degree terms for repeatability.
* ENH: Allow specification of terms to fit in fit methodJonathan Underwood2016-01-181-2/+8
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* DOC: Polynomial.deriv refers to integrations, not differentiationsAndrew Nelson2015-06-101-1/+1
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* STY: PEP8 fixes for files in numpy/polynomial.Charles Harris2014-07-291-3/+1
| | | | | The rather lax standards used in scipy were used to identify the needed style fixups.
* MAINT: Comparison deprecation followup fixesSebastian Berg2014-05-041-2/+3
| | | | | | | Makes the identity check `a = np.array([np.nan], dtype=object)` `a == a`, etc. a deprecation/futurewarning instead of just changing it. Also fixes some smaller things.
* MAINT: Refactor numpy/polynomial/_polybase.pyCharles Harris2014-05-031-121/+100
| | | | | | | | | | 1) Clean up the code and move repeated snippet to a method. 2) Remove use of has_sametype, has_samewindow, has_samedomain. I would like to deprecate those methods. 3) Fix error in __truediv__, and make it only allow non-boolean numbers for the denominator. Closes #4631.
* DOC: Fixup documentation for new way of generating classes.Charles Harris2014-03-261-195/+171
| | | | | | | | | | Move the class documentation to the place of definition in the appropriate module. This allow for documenting the specific series kind along with the series specific default domains and windows Remove template placeholders from the ABCPolyBase class documention. General fixup of documentation that rendered poorly.
* ENH, MAINT: Use an abstract base class for the polynomial classes.Charles Harris2014-03-261-0/+1008
The new base is ABCPolyBase and is intended to replace the use of the polytemplate string. In this way the need to compile the polynomial classes on import is avoided. Closes #634. Closes #3639.
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