Skip to main content
Help us improve PyPI by participating in user testing. All experience levels needed!

Interactive Minimization Tools based on MINUIT

Project description


Interactive IPython-Friendly Minimizer based on SEAL Minuit2. (A slightly modified version is included in the package no need to install it separately)

It is designed from ground up to be fast, interactive and cython friendly. iminuit extracts function signature very permissively starting from checking func_code down to last resort of parsing docstring(or you could tell iminuit to stop looking and take your answer). The interface is inspired heavily by PyMinuit and the status printout is inspired by ROOT Minuit. iminuit is mostly compatible with PyMinuit(with few exceptions). Existing PyMinuit code can be ported to iminuit by just changing the import statement.

In a nutshell:

from iminuit import Minuit
def f(x, y, z):
    return (x - 2) ** 2 + (y - 3) ** 2 + (z - 4) ** 2
m = Minuit(f)
print(m.values)  # {'x': 2,'y': 3,'z': 4}
print(m.errors)  # {'x': 1,'y': 1,'z': 1}


First install cython (pip install cython), then

python install

or from pip:

pip install iminuit

For Windows, Christoph Gohlke made a nice windows binary to save you all from Windows compilation nightmare:


All the tutorials are in tutorial directory. You can view it online too.

Technical Stuff

Using it as a black box is a bad idea. Here are some fun reads; the order is given by the order I think you should read.

You can help

Github allows you to contribute to this project very easily just fork the repository, make changes and submit a pull request.

Here’s the list of concrete open issues and feature requests:

More generally any contribution to the docs, tests and package itself is welcome!

  • Documentation. Tell us what’s missing, what’s incorrect or misleading.
  • Tests. If you have an example that shows a bug or problem, please file an issue!
  • Performance. If you are a C/cython/python hacker go ahead and make it faster.

Release history Release notifications

This version
History Node


History Node


History Node


History Node


History Node


History Node


History Node


History Node


History Node


History Node


History Node


History Node


History Node


Download files

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

Filename, size & hash SHA256 hash help File type Python version Upload date
iminuit-1.2.tar.gz (931.6 kB) Copy SHA256 hash SHA256 Source None Nov 10, 2015

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging CloudAMQP CloudAMQP RabbitMQ AWS AWS Cloud computing Fastly Fastly CDN DigiCert DigiCert EV certificate StatusPage StatusPage Status page