Overview
========

During this week we will learn a few really useful and commonly used GIS functionalities using Geopandas, namely:

1. :doc:`Data classification <reclassify>`
2. :doc:`Geometric operations: Overlay analysis <geometric-operations>`
3. :doc:`Exercise 4 <ex-4>`
4. :doc:`Exercise 4 hints <exercise-4-hints>`

Learning goals
--------------

After this week's lesson you should be able to:

 - Conduct a Point in Polygon queries
 - Read data from KML file
 - Make spatial and table joins between layers
 - Find the nearest neighbour from Point -objects.

Sources
-------

Following materials are partly based on documentation of `Geopandas <http://geopandas.org/geocoding.html>`__, `Pandas <http://pandas.pydata.org/>`__, `Shapely
<http://toblerity.org/shapely/manual.html#>`__, and `pysal <http://pysal.readthedocs.io/en/latest/>`_.

Lecture videos
--------------

.. admonition:: Lesson 4.1 - Data classification; Pysal map classification schemes

    .. raw:: html

        <iframe width="560" height="315" src="https://www.youtube.com/embed/gXsuiNQGQYU" frameborder="0" allowfullscreen></iframe>
        <p>Henrikki Tenkanen, University of Helsinki <a href="https://www.youtube.com/channel/UCGrJqJjVHGDV5l0XijSAN1Q/playlists">@ AutoGIS channel on Youtube</a>.</p>


.. admonition:: Lesson 4.2 - Overlay analysis; Aggregate spatial data; Simplify geometries

    .. raw:: html

        <iframe width="560" height="315" src="https://www.youtube.com/embed/o164NS3bKz0" frameborder="0" allowfullscreen></iframe>
        <p>Henrikki Tenkanen, University of Helsinki <a href="https://www.youtube.com/channel/UCGrJqJjVHGDV5l0XijSAN1Q/playlists">@ AutoGIS channel on Youtube</a>.</p>