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Raise error not string (#7945)

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* ci: Add `B023` to `.flake8` ignores

* refactor: Return `bool`/raise Exception

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* revert: Remove previous branch commit

* Update data_structures/binary_tree/segment_tree_other.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* feat: Apply `__repr__` changes

* chore: Fix failing tests

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Update data_structures/binary_tree/segment_tree_other.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* test: Fix doctests

* random.choice(population_score[:N_SELECTED])[0]

* Update basic_string.py

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Co-authored-by: Christian Clauss <cclauss@me.com>
This commit is contained in:
Caeden Perelli-Harris
2022-11-06 14:54:44 +00:00
committed by GitHub
parent 51708530b6
commit daa1c7529a
14 changed files with 123 additions and 120 deletions
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14
linear_algebra/src/polynom_for_points.py
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@ -4,9 +4,13 @@ def points_to_polynomial(coordinates: list[list[int]]) -> str:
number of points you want to use
>>> print(points_to_polynomial([]))
The program cannot work out a fitting polynomial.
Traceback (most recent call last):
...
ValueError: The program cannot work out a fitting polynomial.
>>> print(points_to_polynomial([[]]))
The program cannot work out a fitting polynomial.
Traceback (most recent call last):
...
ValueError: The program cannot work out a fitting polynomial.
>>> print(points_to_polynomial([[1, 0], [2, 0], [3, 0]]))
f(x)=x^2*0.0+x^1*-0.0+x^0*0.0
>>> print(points_to_polynomial([[1, 1], [2, 1], [3, 1]]))
@ -25,17 +29,17 @@ def points_to_polynomial(coordinates: list[list[int]]) -> str:
f(x)=x^2*5.0+x^1*-18.0+x^0*18.0
"""
if len(coordinates) == 0 or not all(len(pair) == 2 for pair in coordinates):
return "The program cannot work out a fitting polynomial."
raise ValueError("The program cannot work out a fitting polynomial.")
if len({tuple(pair) for pair in coordinates}) != len(coordinates):
return "The program cannot work out a fitting polynomial."
raise ValueError("The program cannot work out a fitting polynomial.")
set_x = {x for x, _ in coordinates}
if len(set_x) == 1:
return f"x={coordinates[0][0]}"
if len(set_x) != len(coordinates):
return "The program cannot work out a fitting polynomial."
raise ValueError("The program cannot work out a fitting polynomial.")
x = len(coordinates)