ColumnIterator
==============

.. cpp:class:: numpy::ColumnIterator

   numpy C++ class.

Example
-------

.. code-block:: cpp

   #include <numpy/np_ndarray.h>
   using namespace numpy;

   // Use ColumnIterator
   NDArray<double> arr = np::arange<double>(12).reshape({3, 4});
   for (auto it = arr.begin(); it != arr.end(); ++it) {
       // ... process elements ...
   }

Constructors
------------

.. list-table::
   :widths: 55 25 20
   :header-rows: 1

   * - Signature
     - Location
     - Example
   * - ``ColumnIterator(const Index<std::string>\* columns_index, size_t pos)``
     - df_dataframe.h:840
     -