Machine learning for NeuroImaging in Python
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[MRG+1] Sets default value of t_r in singal.clean and image.clean_img to None
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Nilearn is a Python module for fast and easy statistical learning on NeuroImaging data.

It leverages the scikit-learn Python toolbox for multivariate statistics with applications such as predictive modelling, classification, decoding, or connectivity analysis.

This work is made available by a community of people, amongst which the INRIA Parietal Project Team and the scikit-learn folks, in particular P. Gervais, A. Abraham, V. Michel, A. Gramfort, G. Varoquaux, F. Pedregosa, B. Thirion, M. Eickenberg, C. F. Gorgolewski, D. Bzdok, L. Esteve and B. Cipollini.

Important links


The required dependencies to use the software are:

  • Python >= 2.7,
  • setuptools
  • Numpy >= 1.11
  • SciPy >= 0.17
  • Scikit-learn >= 0.18
  • Nibabel >= 2.0.2

If you are using nilearn plotting functionalities or running the examples, matplotlib >= 1.5.1 is required.

If you want to run the tests, you need nose >= 1.2.1 and coverage >= 3.6.


First make sure you have installed all the dependencies listed above. Then you can install nilearn by running the following command in a command prompt:

pip install -U --user nilearn

More detailed instructions are available at


Detailed instructions on how to contribute are available at