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Daniele Nicolodi <nicolodi@science.unitn.it> |
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Wed, 07 Dec 2011 17:24:37 +0100 (2011-12-07) |
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<title>Introducing LTPDA Objects (LTPDA Toolbox)</title>
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<td valign="baseline"><b>LTPDA Toolbox</b></td><td><a href="../helptoc.html">contents</a></td>
<td valign="baseline" align="right"><a href=
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<h1 class="title"><a name="f3-12899" id="f3-12899"></a>Introducing LTPDA Objects</h1>
<hr>
<p>
<p>
The LTPDA toolbox is object oriented and as such, extends the MATLAB object types to many others. All data processing is
done using objects and methods of those classes.
</p>
<p>
For full details of objects in MATLAB, refer to <a href="matlab:web(['jar:file:///' matlabroot '/help/techdoc/help.jar!/matlab_oop/ug_intropage.html'])">MATLAB Classes and Object-Oriented Programming</a>.
</p>
<a name="classes" id= "classes"><h3 class="title">LTPDA Classes</h3></a>
<p>
Various classes make up the object-oriented infrastructure of LTPDA. The figure below shows all the classes in LTPDA.
All classes are derived from the base class, <tt>ltpda_obj</tt>. The classes then fall into two main types deriving
from the classes <tt>ltpda_nuo</tt> and <tt>ltpda_uo</tt>.
</p>
<br>
<img src="images/objects_class_diagram.png" alt="LTPDA classes">
<br>
<p>
The left branch, <tt>ltpda_nuo</tt>, are termed 'non-user objects'. These
objects are not typically accessed or created by users. The right branch, <tt>ltpda_uo</tt>, are termed 'user objects'.
These objects have a 'name' and a 'history' property which means that their processing history is tracked through all
LTPDA algorithms. In addition, these 'user objects' can be saved to disk or to an LTPDA repository.
</p>
<p>
The objects drawn in green are expected to be created by users in scripts or on the LTPDA GUI.
</p>
<p>Details of each class are given in:</p>
<table border="1" cellpadding="2" width="30%" bgcolor="#DDDDDD">
<tr valign="top">
<td><a href="class_desc_ao.html">analysis object class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_ssm.html">statespace model class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_rational.html">rational class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_parfrac.html">partial fraction class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_pzmodel.html">pole/zero model class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_miir.html">iir filter class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_mfir.html">fir filter class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_timespan.html">timespan class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_plist.html">parameter list class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_specwin.html">spectral window class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_time.html">time class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_pz.html">pole/zero class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_minfo.html">method info class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_history.html">history class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_provenance.html">provenance class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_param.html">parameter class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_unit.html">unit class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_cdata.html">constant data class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_xydata.html">xy data class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_tsdata.html">time-series data class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_fsdata.html">frequency-series data class</a></td>
</tr>
<tr valign="top">
<td><a href="class_desc_xyzdata.html">xyz data class</a></td>
</tr>
</table>
</p>
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<td align="left" width="20"><a href="userguide.html"><img src=
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<td align="left">User Guide</td>
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<td align="right">Types of User Objects</td>
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