Skip to main content

Akima Interpolation

Project description

Akima is a Python library that implements Akima’s interpolation method described in:

A new method of interpolation and smooth curve fitting based on local procedures. Hiroshi Akima, J. ACM, October 1970, 17(4), 589-602.

A continuously differentiable sub-spline is built from piecewise cubic polynomials. It passes through the given data points and will appear smooth and natural.

This module is no longer being actively developed. Consider using scipy.interpolate.Akima1DInterpolator instead.


Christoph Gohlke


BSD 3-Clause




This release has been tested with the following requirements and dependencies (other versions may work):



  • Remove support for Python 3.7 (NEP 29).

  • Update metadata.


>>> from matplotlib import pyplot
>>> from scipy.interpolate import Akima1DInterpolator
>>> def example():
...     '''Plot interpolated Gaussian noise.'''
...     x = numpy.sort(numpy.random.random(10) * 100)
...     y = numpy.random.normal(0.0, 0.1, size=len(x))
...     x2 = numpy.arange(x[0], x[-1], 0.05)
...     y2 = interpolate(x, y, x2)
...     y3 = Akima1DInterpolator(x, y)(x2)
...     pyplot.title('Akima interpolation of Gaussian noise')
...     pyplot.plot(x2, y2, 'r-', label='akima')
...     pyplot.plot(x2, y3, 'b:', label='scipy', linewidth=2.5)
...     pyplot.plot(x, y, 'go', label='data')
...     pyplot.legend()
>>> example()

Project details

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

akima-2022.9.12.tar.gz (9.4 kB view hashes)

Uploaded source

Built Distributions

akima-2022.9.12-cp311-cp311-win_arm64.whl (13.8 kB view hashes)

Uploaded cp311

akima-2022.9.12-cp311-cp311-win_amd64.whl (15.2 kB view hashes)

Uploaded cp311

akima-2022.9.12-cp311-cp311-win32.whl (14.2 kB view hashes)

Uploaded cp311

akima-2022.9.12-cp310-cp310-win_amd64.whl (15.2 kB view hashes)

Uploaded cp310

akima-2022.9.12-cp310-cp310-win32.whl (14.2 kB view hashes)

Uploaded cp310

akima-2022.9.12-cp39-cp39-win_amd64.whl (15.2 kB view hashes)

Uploaded cp39

akima-2022.9.12-cp39-cp39-win32.whl (14.2 kB view hashes)

Uploaded cp39

akima-2022.9.12-cp38-cp38-win_amd64.whl (15.2 kB view hashes)

Uploaded cp38

akima-2022.9.12-cp38-cp38-win32.whl (14.2 kB view hashes)

Uploaded cp38

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page