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# numpy.ma.mr

`numpy.ma.``mr_` = <numpy.ma.extras.mr_class object>

  Translate slice objects to concatenation along the first axis.

  This is the masked array version of lib.index_tricks.RClass.

  See also

  `lib.index_tricks.RClass`

  Examples

      >>> np.ma.mr_[np.ma.array([1,2,3]), 0, 0, np.ma.array([4,5,6])]
      array([1, 2, 3, 0, 0, 4, 5, 6])