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 mca is a `Multiple Correspondence Analysis <http://en.wikipedia.org/wiki/Multiple_correspondence_analysis>`_ (MCA) package for python, intended to be used with `pandas <http://pandas.pydata.org/>`_. MCA is a `feature extraction <http://en.wikipedia.org/wiki/Feature_extraction>`_ method; essentially `PCA <http://en.wikipedia.org/wiki/Principal_component_analysis>`_ for `categorical variables <http://en.wikipedia.org/wiki/Categorical_variable>`_. You can use it, for example, to address `multicollinearity <http://en.wikipedia.org/wiki/Multicollinearity>`_ or the `curse of dimensionality <http://en.wikipedia.org/wiki/Curse_of_dimensionality>`_ with big categorical variables.
 
 Installation