hankel

library1.2.2pypypi✓ verified 83d ago

Hankel Transformations using the method of Ogata 2005. Current version 1.2.2, requires Python >=3.6. Maintenance mode with occasional bugfixes.

data

pip install hankel

github ↗package ↗docs ↗changelog ↗

INSTALL

IMPORT

SIG · HANKEL

hankel

datapythonv1.2.2

Install

7.4s avg

Import

1568ms

Disk

235MB

Pass rate

10/ 10

Env Coverage10 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v1.2.2 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.95 runs

installs and imports cleanly · install 0.0s · import 1.630s · 235MB

glibc

py 3.10–3.95 runs

installs and imports cleanly · install 7.4s · import 1.506s · 226MB

235MB installed

● package 235MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

HankelTransform

✓ from hankel import HankelTransform

SymmetricFourierTransform

✓ from hankel import SymmetricFourierTransform

Compute Hankel transform of f(x)=exp(-x^2) at points k=1,2.

from hankel import HankelTransform import numpy as np ht = HankelTransform(nu=0, N=200, h=0.05) result = ht.transform(lambda x: np.exp(-x**2), np.array([1.0, 2.0])) print(result)

Debug

Known issues

deprecatedThe `algebraic_decay` parameter in `__init__` is deprecated since v1.0.

fix

Use `algorithm='direct' or 'ogata'` instead.

affects: >=1.0

gotchaDefault `N` (number of integration points) may be too small for accurate transforms; always check convergence.

fix

Increase `N` (e.g., 200-500) and compare results.

affects: all

breakingIn v1.0, the `h` parameter spacing was changed from logarithmic to semi-logarithmic scaling; results differ from v0.3.x.

fix

Adjust `h` value and recompute, or pin to v0.3.x.

affects: <1.0 and >=1.0

Errors

Common errors & fixes

AttributeError: module 'hankel' has no attribute 'HankelTransform'

Wrong import path, e.g., `import hankel` and then `hankel.HankelTransform` instead of direct import.

fix

Use `from hankel import HankelTransform`.

ValueError: h must be positive

Provided non-positive `h` parameter.

fix

Ensure `h` > 0, e.g., 0.05.

Upgrade

Version history

1.2.2latest on PyPI · released Jul 27, 2023

Audit

Dependencies

numpyrequiredCore numerical operations and FFT

scipyrequiredBessel functions and special functions

Agent activity

13 hits · last 30 days

node

Amazon

Resources

githubhttps://github.com/steven-murray/hankel ↗

packagehttps://pypi.org/project/hankel/ ↗

docshttps://hankel.readthedocs.io ↗

changeloghttps://github.com/steven-murray/hankel/blob/master/CHANGELOG.rst ↗