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<title>sgolayfilt</title>
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<span class="path"><a href="index.html">FOSSEE Signal Processing Toolbox</a> >> <a href="section_5118e822ecc2888aa80042108de4932e.html">FOSSEE Signal Processing Toolbox</a> > sgolayfilt</span>
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<span class="path"><a href="index.html">FOSSEE Signal Processing Toolbox</a> >> <a href="section_cc2bc01c47967d47fcf3507a91d572ba.html">FOSSEE Signal Processing Toolbox</a> > sgolayfilt</span>
>>>>>>> 3f916032cc0b2efdeafb838dd10e1141ead2cb27
<br /><br />
<div class="refnamediv"><h1 class="refname">sgolayfilt</h1>
<p class="refpurpose"></p></div>
<div class="refsynopsisdiv"><h3 class="title">Calling Sequence</h3>
<div class="synopsis"><pre><span class="default">y</span><span class="default"> = </span><span class="functionid">sgolayfilt</span><span class="default"> (</span><span class="default">x</span><span class="default">)</span>
<span class="default">y</span><span class="default"> = </span><span class="functionid">sgolayfilt</span><span class="default"> (</span><span class="default">x</span><span class="default">, </span><span class="default">p</span><span class="default">)</span>
<span class="default">y</span><span class="default"> = </span><span class="functionid">sgolayfilt</span><span class="default"> (</span><span class="default">x</span><span class="default">, </span><span class="default">p</span><span class="default">, </span><span class="default">n</span><span class="default">)</span>
<span class="default">y</span><span class="default"> = </span><span class="functionid">sgolayfilt</span><span class="default"> (</span><span class="default">x</span><span class="default">, </span><span class="default">p</span><span class="default">, </span><span class="default">n</span><span class="default">, </span><span class="default">m</span><span class="default">)</span>
<span class="default">y</span><span class="default"> = </span><span class="functionid">sgolayfilt</span><span class="default"> (</span><span class="default">x</span><span class="default">, </span><span class="default">p</span><span class="default">, </span><span class="default">n</span><span class="default">, </span><span class="default">m</span><span class="default">, </span><span class="default">ts</span><span class="default">)</span></pre></div></div>
<div class="refsection"><h3 class="title">Parameters</h3>
<dl><dt><span class="term">x:</span>
<dd><p class="para">vector or matrix of real or complex numbers</p></dd></dt>
<dt><span class="term">p:</span>
<dd><p class="para">polynomial order, real number less than n, default value 3</p></dd></dt>
<dt><span class="term">n:</span>
<dd><p class="para">integer, odd number greater than p</p></dd></dt>
<dt><span class="term">m:</span>
<dd><p class="para">vector of real positive valued numbers, length n</p></dd></dt>
<dt><span class="term">ts:</span>
<dd><p class="para">real number, default value 1</p></dd></dt></dl></div>
<div class="refsection"><h3 class="title">Description</h3>
<p class="para">This function applies a Savitzky-Golay FIR smoothing filter to the data given in the vector x; if x is a matrix, this function operates
on each column.
The polynomial order p should be real, less than the size of the frame given by n.
m is a weighting vector with default value identity matrix.
ts is the dimenstion along which the filter operates. If not specified, the function operates along the first non singleton dimension.</p></div>
<div class="refsection"><h3 class="title">Examples</h3>
<div class="programlisting"><table border="0" width="100%"><tr><td width="98%"><pre class="scilabcode"><span class="scilabid">sgolayfilt</span><span class="scilabopenclose">(</span><span class="scilabopenclose">[</span><span class="scilabnumber">1</span><span class="scilabdefault">;</span><span class="scilabnumber">2</span><span class="scilabdefault">;</span><span class="scilabid">i</span><span class="scilabdefault">;</span><span class="scilabnumber">4</span><span class="scilabdefault">;</span><span class="scilabnumber">7</span><span class="scilabopenclose">]</span><span class="scilabdefault">,</span> <span class="scilabnumber">0.3</span><span class="scilabdefault">,</span> <span class="scilabnumber">3</span><span class="scilabdefault">,</span> <span class="scilabnumber">0</span><span class="scilabdefault">,</span> <span class="scilabnumber">0</span><span class="scilabopenclose">)</span>
<span class="scilabid">ans</span> <span class="scilaboperator">=</span>
<span class="scilabnumber">1.0000</span> <span class="scilaboperator">+</span> <span class="scilabnumber">0.3333</span><span class="scilabid">i</span>
<span class="scilabnumber">1.0000</span> <span class="scilaboperator">+</span> <span class="scilabnumber">0.3333</span><span class="scilabid">i</span>
<span class="scilabnumber">2.0000</span> <span class="scilaboperator">+</span> <span class="scilabnumber">0.3333</span><span class="scilabid">i</span>
<span class="scilabnumber">3.6667</span> <span class="scilaboperator">+</span> <span class="scilabnumber">0.3333</span><span class="scilabid">i</span>
<span class="scilabnumber">3.6667</span> <span class="scilaboperator">+</span> <span class="scilabnumber">0.3333</span><span class="scilabid">i</span>
<span class="scilabid">This</span> <span class="scilabfkeyword">function</span> <span class="scilabid">being</span> <span class="scilabid">called</span> <span class="scilabid">from</span> <span class="scilabid">Octave</span></pre></td><td valign="top"><a href="scilab://scilab.execexample/"><img src="ScilabExecute.png" border="0"/></a></td><td valign="top"><a href="scilab://scilab.editexample/"><img src="ScilabEdit.png" border="0"/></a></td><td></td></tr></table></div></div>
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