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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> > wkeep</span>
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<div class="refnamediv"><h1 class="refname">wkeep</h1>
<p class="refpurpose"></p></div>
<div class="refsynopsisdiv"><h3 class="title">Calling Sequence</h3>
<div class="synopsis"><pre><span class="default">[</span><span class="default">y</span><span class="default">]=</span><span class="functionid">wkeep</span><span class="default">(</span><span class="default">x</span><span class="default">,</span><span class="default">l</span><span class="default">)</span>
<span class="default">[</span><span class="default">y</span><span class="default">]=</span><span class="functionid">wkeep</span><span class="default">(</span><span class="default">x</span><span class="default">,</span><span class="default">l</span><span class="default">,</span><span class="default">opt</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">Real, complex or string type input vector or matrix</p></dd></dt>
<dt><span class="term">l:</span>
<dd><p class="para">Length of matrix required</p></dd></dt>
<dt><span class="term">opt:</span>
<dd><p class="para">Character input to determine which side to extract from</p></dd></dt></dl></div>
<div class="refsection"><h3 class="title">Description</h3>
<p class="para">This is an Octave function
[y]=wkeep(x,l) extracts a vector of length l from the centre of input vector x.
[y]=wkeep(x,l,opt) extracts vector based on opt which could be 'l','r' or 'c' (left, right or central).</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="scilabnumber">1.</span> <span class="scilabopenclose">[</span><span class="scilabid">y</span><span class="scilabopenclose">]</span><span class="scilaboperator">=</span><span class="scilabid">wkeep</span><span class="scilabopenclose">(</span><span class="scilabopenclose">[</span><span class="scilabnumber">1</span> <span class="scilabnumber">2</span> <span class="scilabnumber">3</span><span class="scilabdefault">;</span><span class="scilabnumber">4</span> <span class="scilabnumber">5</span> <span class="scilabnumber">6</span><span class="scilabopenclose">]</span><span class="scilabdefault">,</span><span class="scilabopenclose">[</span><span class="scilabnumber">2</span> <span class="scilabnumber">2</span><span class="scilabopenclose">]</span><span class="scilabopenclose">)</span>
<span class="scilabid">y</span><span class="scilaboperator">=</span> <span class="scilabnumber">1</span> <span class="scilabnumber">2</span>
<span class="scilabnumber">2.</span> <span class="scilabopenclose">[</span><span class="scilabid">y</span><span class="scilabopenclose">]</span><span class="scilaboperator">=</span><span class="scilabid">wkeep</span><span class="scilabopenclose">(</span><span class="scilabopenclose">[</span><span class="scilabnumber">1</span> <span class="scilabnumber">2</span> <span class="scilabnumber">3</span> <span class="scilabnumber">4</span> <span class="scilabnumber">5</span> <span class="scilabnumber">6</span><span class="scilabopenclose">]</span><span class="scilabdefault">,</span><span class="scilabnumber">3</span><span class="scilabdefault">,</span><span class="scilabstring">'</span><span class="scilabstring">r</span><span class="scilabstring">'</span><span class="scilabopenclose">)</span>
<span class="scilabid">y</span><span class="scilaboperator">=</span> <span class="scilabnumber">4</span> <span class="scilabnumber">5</span> <span class="scilabnumber">6</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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