Mercurial > hg > ltpda

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   "http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">

<html lang="en">
<head>
  <meta name="generator" content=
  "HTML Tidy for Mac OS X (vers 1st December 2004), see www.w3.org">
  <meta http-equiv="Content-Type" content=
  "text/html; charset=us-ascii">

  <title>Plotting Analysis Objects (LTPDA Toolbox)</title>
  <link rel="stylesheet" href="docstyle.css" type="text/css">
  <meta name="generator" content="DocBook XSL Stylesheets V1.52.2">
  <meta name="description" content=
  "Presents an overview of the features, system requirements, and starting the toolbox.">
  </head>

<body>
  <a name="top_of_page" id="top_of_page"></a>

  <p style="font-size:1px;">&nbsp;</p>

  <table class="nav" summary="Navigation aid" border="0" width=
  "100%" cellpadding="0" cellspacing="0">
    <tr>
      <td valign="baseline"><b>LTPDA Toolbox</b></td><td><a href="../helptoc.html">contents</a></td>

      <td valign="baseline" align="right"><a href=
      "ao_save.html"><img src="b_prev.gif" border="0" align=
      "bottom" alt="Saving Analysis Objects"></a>&nbsp;&nbsp;&nbsp;<a href=
      "collection_objects.html"><img src="b_next.gif" border="0" align=
      "bottom" alt="Collection objects"></a></td>
    </tr>
  </table>

  <h1 class="title"><a name="f3-12899" id="f3-12899"></a>Plotting Analysis Objects</h1>
  <hr>

  <p>
	<p>
  The data in an AO can be plotted using the <tt>iplot</tt> method.
</p>
<p>
  The <tt>iplot</tt> method provides an advanced plotting interface for AOs which tries to make good use of all the information
  contained within the input AOs. For example, if the <tt>xunits</tt> and <tt>yunits</tt> fields of the input AOs are set, these labels
  are used on the plot labels.
</p>

<p>
  In addition, <tt>iplot</tt> can be configured using a input <tt>plist</tt>. The following examples show some of the
  possible ways to use <tt>iplot</tt>
</p>

<div class="fragment"><pre>
    >> a1 = ao(plist(<span class="string">'tsfcn'</span>, <span class="string">'sin(2*pi*0.3*t) + randn(size(t))'</span>, <span class="string">'fs'</span>, 10, <span class="string">'nsecs'</span>, 20))
    ----------- ao 01: a1 -----------

           name:  None
           data: (0,0.887479404587351) (0.1,-0.449797172615395) (0.2,0.479022102390939) ...
                 -------- tsdata 01 ------------

                     fs:  10
                      x:  [200 1], double
                      y:  [200 1], double
                     dx:  [0 0], double
                     dy:  [0 0], double
                 xunits:  [s]
                 yunits:  []
                  nsecs:  20
                     t0:  1970-01-01 00:00:00.000
                 -------------------------------

           hist:  ao / ao / SId: fromTSfcn ... $-->$Id: ao ... S
        mdlfile:  empty
    description:
           UUID:  67d31c2f-8ee5-42ba-a96b-cfb288ecc9ea
    ---------------------------------

    >> a1.data
    -------- tsdata 01 ------------

        fs:  10
         x:  [200 1], double
         y:  [200 1], double
        dx:  [0 0], double
        dy:  [0 0], double
    xunits:  [s]
    yunits:  []
     nsecs:  20
        t0:  1970-01-01 00:00:00.000
    -------------------------------
</pre></div>
<p> Creates a time-series AO. If we look at the data object contained in this AO, we see that the <tt>xunits</tt>
are set to the defaults of seconds [s].</p>
<p>If we plot this object with <tt>iplot</tt> we see these units reflected in the x and y axis labels.</p>
<div class="fragment"><pre>
    >> iplot(a1)
</pre></div>

<img src="images/ao_iplot_eg1.png" alt="AO iplot eg1" border="3" width="600px">

<p>We also see that the time-origin of the data (<tt>t0</tt> field of the <tt>tsdata</tt> class) is displayed as the plot title.</p>


  </p>

  <br>
  <br>
  <table class="nav" summary="Navigation aid" border="0" width=
  "100%" cellpadding="0" cellspacing="0">
    <tr valign="top">
      <td align="left" width="20"><a href="ao_save.html"><img src=
      "b_prev.gif" border="0" align="bottom" alt=
      "Saving Analysis Objects"></a>&nbsp;</td>

      <td align="left">Saving Analysis Objects</td>

      <td>&nbsp;</td>

      <td align="right">Collection objects</td>

      <td align="right" width="20"><a href=
      "collection_objects.html"><img src="b_next.gif" border="0" align=
      "bottom" alt="Collection objects"></a></td>
    </tr>
  </table><br>

  <p class="copy">&copy;LTP Team</p>
</body>
</html>
author	Daniele Nicolodi <nicolodi@science.unitn.it>
date	Mon, 05 Dec 2011 16:20:06 +0100
parents	f0afece42f48
children