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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> > unshiftdata</span>
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<div class="refnamediv"><h1 class="refname">unshiftdata</h1>
<p class="refpurpose">Inverts the effect of shiftdata</p></div>
<div class="refsynopsisdiv"><h3 class="title">Calling Sequence</h3>
<div class="synopsis"><pre></pre></div></div>
<div class="refsection"><h3 class="title">Parameters</h3>
<dl></dl></div>
<div class="refsection"><h3 class="title">Description</h3>
<p class="para">y=unshiftdata(x,perm,nshifts)
Applies the permutation perm or number of shifts nshifts on x to invert shiftdata</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">x</span><span class="scilaboperator">=</span><a class="scilabcommand" href="scilab://testmatrix">testmatrix</a><span class="scilabopenclose">(</span><span class="scilabstring">'</span><span class="scilabstring">magi</span><span class="scilabstring">'</span><span class="scilabdefault">,</span><span class="scilabnumber">3</span><span class="scilabopenclose">)</span>
<span class="scilabid">x</span> <span class="scilaboperator">=</span>
<span class="scilabnumber">8.</span> <span class="scilabnumber">1.</span> <span class="scilabnumber">6.</span>
<span class="scilabnumber">3.</span> <span class="scilabnumber">5.</span> <span class="scilabnumber">7.</span>
<span class="scilabnumber">4.</span> <span class="scilabnumber">9.</span> <span class="scilabnumber">2.</span>
<span class="scilabopenclose">[</span><span class="scilabid">y</span><span class="scilabdefault">,</span><span class="scilabid">perm</span><span class="scilabdefault">,</span><span class="scilabid">nshifts</span><span class="scilabopenclose">]</span> <span class="scilaboperator">=</span> <span class="scilabid">shiftdata</span><span class="scilabopenclose">(</span><span class="scilabid">x</span><span class="scilabdefault">,</span><span class="scilabnumber">2</span><span class="scilabopenclose">)</span> <span class="scilabcomment">//Shifts dimension 2</span>
<span class="scilabid">nshifts</span> <span class="scilaboperator">=</span>
<span class="scilabopenclose">[</span><span class="scilabopenclose">]</span>
<span class="scilabid">perm</span> <span class="scilaboperator">=</span>
<span class="scilabnumber">2.</span> <span class="scilabnumber">1.</span>
<span class="scilabid">y</span> <span class="scilaboperator">=</span>
<span class="scilabnumber">8.</span> <span class="scilabnumber">3.</span> <span class="scilabnumber">4.</span>
<span class="scilabnumber">1.</span> <span class="scilabnumber">5.</span> <span class="scilabnumber">9.</span>
<span class="scilabnumber">6.</span> <span class="scilabnumber">7.</span> <span class="scilabnumber">2.</span>
<span class="scilabid">z</span><span class="scilaboperator">=</span><span class="scilabid">unshiftdata</span><span class="scilabopenclose">(</span><span class="scilabid">y</span><span class="scilabdefault">,</span><span class="scilabid">perm</span><span class="scilabdefault">,</span><span class="scilabid">nshifts</span><span class="scilabopenclose">)</span>
<span class="scilabid">z</span> <span class="scilaboperator">=</span>
<span class="scilabnumber">8.</span> <span class="scilabnumber">1.</span> <span class="scilabnumber">6.</span>
<span class="scilabnumber">3.</span> <span class="scilabnumber">5.</span> <span class="scilabnumber">7.</span>
<span class="scilabnumber">4.</span> <span class="scilabnumber">9.</span> <span class="scilabnumber">2.</span>
<span class="scilabid">x</span><span class="scilaboperator">=</span><span class="scilabnumber">1</span><span class="scilabspecial">:</span><span class="scilabnumber">5</span>
<span class="scilabid">x</span> <span class="scilaboperator">=</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="scilabopenclose">[</span><span class="scilabid">y</span><span class="scilabdefault">,</span><span class="scilabid">perm</span><span class="scilabdefault">,</span><span class="scilabid">nshifts</span><span class="scilabopenclose">]</span> <span class="scilaboperator">=</span> <span class="scilabid">shiftdata</span><span class="scilabopenclose">(</span><span class="scilabid">x</span><span class="scilabopenclose">)</span> <span class="scilabcomment">//Shifts first non-singleton dimension</span>
<span class="scilabid">nshifts</span> <span class="scilaboperator">=</span>
<span class="scilabnumber">1.</span>
<span class="scilabid">perm</span> <span class="scilaboperator">=</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">3.</span>
<span class="scilabnumber">4.</span>
<span class="scilabnumber">5.</span>
<span class="scilabcomment">//z=unshiftdata(y,perm,nshifts)</span>
<span class="scilabid">z</span> <span class="scilaboperator">=</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></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>
<div class="refsection"><h3 class="title">See also</h3>
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