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.. _maskedarray:
*************
Masked arrays
*************
Masked arrays are arrays that may have missing or invalid entries.
The :mod:`numpy.ma` module provides a nearly work-alike replacement for numpy
that supports data arrays with masks.
.. index::
single: masked arrays
.. toctree::
:maxdepth: 2
maskedarray.generic
maskedarray.baseclass
routines.ma
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