xy
==============================================

Purpose
----------------
Graphs X vs. Y using Cartesian coordinates.

.. NOTE:: This function is for the deprecated PQG graphics. Use :func:`plotXY` instead.

Library
-------

pgraph

Format
----------------
.. function:: xy(x, y)

    :param x: Each column contains the X values for a particular line.
    :type x: Nx1 or NxM matrix

    :param y: Each column contains the Y values for a particular line.
    :type y: Nx1 or NxM matrix

Remarks
-------

Missing values are ignored when plotting symbols. If missing values are
encountered while plotting a curve, the curve will end and a new curve
will begin plotting at the next non-missing value.

Source
------

pxy.src

.. seealso:: Functions :func:`xyz`, :func:`logx`, :func:`logy`, :func:`loglog`