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author Daniele Nicolodi <nicolodi@science.unitn.it>
date Mon, 05 Dec 2011 18:04:34 +0100
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1
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2 <p>
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3 Parameter objects are used in the LTPDA Toolbox to configure the behaviour of algorithms. A
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4 parameter (<tt>param</tt>) object has two main properties:
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5 <ul>
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6 <li><tt>'key'</tt> &mdash; The parameter name</li>
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7 <li><tt>'val'</tt> &mdash; The parameter value</li>
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8 </ul>
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9 See <a href="class_desc_param.html">param class</a> for further details. The 'key' property is always stored in upper case. The 'value' of a parameter can be any LTPDA object, as well as most standard MATLAB types.
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10 </p>
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11 <p>
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12 Parameter values can take any form: vectors or matrices of numbers; strings; other objects,
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13 for example a <tt>specwin</tt> (spectral window) object.
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14 </p>
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15 <p>
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16 Parameters are created using the <tt>param</tt> class constructor. The following code shows
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17 how to create a parameter 'a' with a value of 1
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18 </p>
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19 <div class="fragment"><pre>
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20 >> p = param(<span class="string">'a'</span>, 1)
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21 ---- param 1 ----
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22 key: a
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23 val: 1
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24 -----------------
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25 </pre></div>
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26 <p>
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27 The contents of a parmeter object can be accessed as follows:
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28 </p>
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29 <div class="fragment"><pre>
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30 >> key = p.key; <span class="comment">% get the parameter key</span>
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31 >> val = p.val; <span class="comment">% get the parameter value</span>
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32 </pre></div>
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