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<title>sgolay</title>
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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> > sgolay</span>
<br /><br />
<div class="refnamediv"><h1 class="refname">sgolay</h1>
<p class="refpurpose">This function computes the filter coefficients for all Savitzsky-Golay smoothing filters.</p></div>
<div class="refsynopsisdiv"><h3 class="title">Calling Sequence</h3>
<div class="synopsis"><pre><span class="default">F</span><span class="default"> = </span><span class="functionid">sgolay</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">F</span><span class="default"> = </span><span class="functionid">sgolay</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">F</span><span class="default"> = </span><span class="functionid">sgolay</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">p:</span>
<dd><p class="para">polynomial</p></dd></dt>
<dt><span class="term">n:</span>
<dd><p class="para">odd integer value, larger than polynomial p</p></dd></dt>
<dt><span class="term">m:</span>
<dd><p class="para">positive integer less than 2^31 or logical</p></dd></dt>
<dt><span class="term">ts:</span>
<dd><p class="para">real or complex value</p></dd></dt></dl></div>
<div class="refsection"><h3 class="title">Description</h3>
<p class="para">This is an Octave function.
This function computes the filter coefficients for all Savitzsky-Golay smoothing filters of order p for length n (odd).
m can be used in order to get directly the mth derivative; ts is a scaling factor.</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">y</span> <span class="scilaboperator">=</span> <span class="scilabid">sgolay</span><span class="scilabopenclose">(</span><span class="scilabnumber">1</span><span class="scilabdefault">,</span><span class="scilabnumber">3</span><span class="scilabdefault">,</span><span class="scilabnumber">0</span><span class="scilabopenclose">)</span>
<span class="scilabid">y</span> <span class="scilaboperator">=</span>
<span class="scilabnumber">0.83333</span> <span class="scilabnumber">0.33333</span> <span class="scilaboperator">-</span><span class="scilabnumber">0.16667</span>
<span class="scilabnumber">0.33333</span> <span class="scilabnumber">0.33333</span> <span class="scilabnumber">0.33333</span>
<span class="scilaboperator">-</span><span class="scilabnumber">0.16667</span> <span class="scilabnumber">0.33333</span> <span class="scilabnumber">0.83333</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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