Added PiecewiseConstantFilter

[FlorianPfaff]

No description provided.

[github-actions]

❌MegaLinter analysis: Error

Descriptor	Linter	Files	Fixed	Errors	Warnings	Elapsed time
✅ ACTION	actionlint	5		0	0	0.14s
✅ COPYPASTE	jscpd	yes		no	no	6.26s
✅ JSON	prettier	2	0	0	0	0.49s
✅ JSON	v8r	2		0	0	2.42s
✅ MARKDOWN	markdownlint	1	0	0	0	0.64s
✅ MARKDOWN	markdown-table-formatter	1	0	0	0	0.25s
✅ PYTHON	bandit	245		0	0	3.04s
✅ PYTHON	black	245	2	0	0	5.73s
❌ PYTHON	flake8	245		2	0	1.5s
✅ PYTHON	isort	245	2	0	0	0.49s
✅ PYTHON	mypy	245		0	0	3.7s
❌ PYTHON	pylint	245		12	0	58.9s
❌ PYTHON	ruff	245	2	2	0	0.06s
✅ REPOSITORY	gitleaks	yes		no	no	3.32s
✅ REPOSITORY	git_diff	yes		no	no	0.01s
✅ REPOSITORY	secretlint	yes		no	no	4.61s
✅ REPOSITORY	syft	yes		no	no	1.59s
✅ REPOSITORY	trivy-sbom	yes		no	no	1.06s
✅ REPOSITORY	trufflehog	yes		no	no	11.34s
✅ YAML	prettier	9	1	0	0	0.69s
✅ YAML	v8r	9		0	0	6.2s
✅ YAML	yamllint	9		0	0	0.43s

Detailed Issues

❌ PYTHON / flake8 - 2 errors

pyrecest/filters/piecewise_constant_filter.py:107:17: E731 do not assign a lambda expression, use a def
pyrecest/filters/piecewise_constant_filter.py:147:17: E731 do not assign a lambda expression, use a def

❌ PYTHON / pylint - 12 errors

************* Module pyrecest.filters.piecewise_constant_filter
pyrecest/filters/piecewise_constant_filter.py:2:0: E0401: Unable to import 'pyrecest.distributions.circle.piecewise_constant_distribution' (import-error)
pyrecest/filters/piecewise_constant_filter.py:2:0: E0611: No name 'piecewise_constant_distribution' in module 'pyrecest.distributions.circle' (no-name-in-module)
pyrecest/filters/piecewise_constant_filter.py:9:4: W0231: __init__ method from base class 'AbstractCircularFilter' is not called (super-init-not-called)
pyrecest/filters/piecewise_constant_filter.py:99:48: W0640: Cell variable l2 defined in loop (cell-var-from-loop)
pyrecest/filters/piecewise_constant_filter.py:99:63: W0640: Cell variable r2 defined in loop (cell-var-from-loop)
pyrecest/filters/piecewise_constant_filter.py:102:54: W0640: Cell variable indicator defined in loop (cell-var-from-loop)
pyrecest/filters/piecewise_constant_filter.py:138:48: W0640: Cell variable l1 defined in loop (cell-var-from-loop)
pyrecest/filters/piecewise_constant_filter.py:138:63: W0640: Cell variable r1 defined in loop (cell-var-from-loop)
pyrecest/filters/piecewise_constant_filter.py:141:54: W0640: Cell variable indicator defined in loop (cell-var-from-loop)
pyrecest/filters/piecewise_constant_filter.py:32:8: W0201: Attribute 'pwc' defined outside __init__ (attribute-defined-outside-init)
pyrecest/filters/piecewise_constant_filter.py:48:8: W0201: Attribute 'pwc' defined outside __init__ (attribute-defined-outside-init)
pyrecest/filters/piecewise_constant_filter.py:66:8: W0201: Attribute 'pwc' defined outside __init__ (attribute-defined-outside-init)

-----------------------------------
Your code has been rated at 9.98/10

❌ PYTHON / ruff - 2 errors

E731 Do not assign a `lambda` expression, use a `def`
   --> pyrecest/filters/piecewise_constant_filter.py:108:17
    |
106 |                 l2 = PieceWiseConstantDistribution.leftBorder(j, L)
107 |                 r2 = PieceWiseConstantDistribution.rightBorder(j, L)
108 |                 indicator = lambda x: np.where((l2 < x) & (x < r2), 1, 0)
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
109 |
110 |                 def integrand(x, w):
    |
help: Rewrite `indicator` as a `def`

E731 Do not assign a `lambda` expression, use a `def`
   --> pyrecest/filters/piecewise_constant_filter.py:148:17
    |
146 |                 l2 = PieceWiseConstantDistribution.leftBorder(j, L)
147 |                 r2 = PieceWiseConstantDistribution.rightBorder(j, L)
148 |                 indicator = lambda x: np.where((l1 < x) & (x < r1), 1, 0)
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
149 |
150 |                 def integrand(x, v):
    |
help: Rewrite `indicator` as a `def`

Found 2 errors.
No fixes available (2 hidden fixes can be enabled with the `--unsafe-fixes` option).

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[github-actions]

Test Results

    9 files      9 suites   1h 52m 41s ⏱️
  449 tests   449 ✅   0 💤 0 ❌
4 200 runs  3 519 ✅ 681 💤 0 ❌

Results for commit f86d4de.

♻️ This comment has been updated with latest results.