ylabel
==============================================

Purpose
----------------
Sets a label for the y-axis.

.. NOTE:: This function is for the deprecated PQG graphics, use :func:`plotSetYLabel` for equivalent functionality.

Library
-------

pgraph

Format
----------------
.. function:: ylabel(str)

    :param str: the label for the y-axis.
    :type str: string

Source
------

pgraph.src

.. seealso:: Functions :func:`title`, :func:`xlabel`, :func:`zlabel`