skip to navigation
skip to content

iminuit 1.2

Interactive Minimization Tools based on MINUIT


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.
File Type Py Version Uploaded on Size
iminuit-1.2.tar.gz (md5) Source 2015-11-10 909KB
  • Downloads (All Versions):
  • 56 downloads in the last day
  • 454 downloads in the last week
  • 1740 downloads in the last month