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diff --git a/help/en_US/scilab_en_US_help/medfilt1.html b/help/en_US/scilab_en_US_help/medfilt1.html new file mode 100644 index 0000000..75973c3 --- /dev/null +++ b/help/en_US/scilab_en_US_help/medfilt1.html @@ -0,0 +1,110 @@ +<html><head> + <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> + <title>medfilt1</title> + <style type="text/css" media="all"> + @import url("scilab_code.css"); + @import url("xml_code.css"); + @import url("c_code.css"); + @import url("style.css"); + </style> + </head> + <body> + <div class="manualnavbar"> + <table width="100%"><tr> + <td width="30%"> + <span class="previous"><a href="marcumq.html"><< marcumq</a></span> + + </td> + <td width="40%" class="center"> + <span class="top"><a href="section_cc2bc01c47967d47fcf3507a91d572ba.html">FOSSEE Signal Processing Toolbox</a></span> + + </td> + <td width="30%" class="next"> + <span class="next"><a href="mexihat.html">mexihat >></a></span> + + </td> + </tr></table> + <hr /> + </div> + + + + <span class="path"><a href="index.html">FOSSEE Signal Processing Toolbox</a> >> <a href="section_cc2bc01c47967d47fcf3507a91d572ba.html">FOSSEE Signal Processing Toolbox</a> > medfilt1</span> + + <br /><br /> + <div class="refnamediv"><h1 class="refname">medfilt1</h1> + <p class="refpurpose">1D median filtering</p></div> + + +<div class="refsynopsisdiv"><h3 class="title">Calling Sequence</h3> + <div class="synopsis"><pre></pre></div></div> + +<div class="refsection"><h3 class="title">Description</h3> + <p class="para">y = medfilt1(x) +Applies a 3rd order 1-dimensional median filter to input x along the +first non-zero dimension. The function appropriately pads the signal +with zeros at the endings. For a segment, a median is calculated as +the middle value (average of two middle values) for odd number +number (even number) of data points. +y = medfilt1(x,n) +Applies a nth order 1-dimensional median filter. +y = medfilt1(x,n,dim) +Applies the median filter along the n-th dimension +y = medfilt1(__, nanflag, padding) +nanflag specifies how NaN values are treated. padding specifies the +type of filtering to be performed at the signal edges.</p> + <p class="para"></p></div> + +<div class="refsection"><h3 class="title">Parameters</h3> + <dl><dt><span class="term">x:</span> + <dd><p class="para">int | double</p></dd></dt> + <dt><span class="term">n:</span> + <dd><p class="para">positive integer scalar</p></dd></dt> + <dt><span class="term">dim:</span> + <dd><p class="para">positive integer scalar</p></dd></dt> + <dt><span class="term">nanflag:</span> + <dd><p class="para">'includenan' (default) | 'omitnan'</p></dd></dt> + <dt><span class="term">* includenan:</span> + <dd><p class="para">Filtering such that the median of any segment</p></dd></dt> + <dt><span class="term">* omitnan:</span> + <dd><p class="para">Filtering with NaNs omitted in each segment. If a segment</p></dd></dt> + <dt><span class="term">y:</span> + <dd><p class="para">int | double</p></dd></dt></dl></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">Noise</span> <span class="scilabid">supression</span> <span class="scilabid">using</span> <a class="scilabmacro" href="scilab://median">median</a> <span class="scilabstring">filtering</span> +<span class="scilabid">fs</span> <span class="scilaboperator">=</span> <span class="scilabnumber">1e3</span><span class="scilabdefault">;</span> +<span class="scilabid">t</span> <span class="scilaboperator">=</span> <span class="scilabnumber">1</span><span class="scilabspecial">:</span><span class="scilabnumber">1</span><span class="scilaboperator">/</span><span class="scilabid">fs</span><span class="scilabspecial">:</span><span class="scilabnumber">1</span><span class="scilabdefault">;</span> +<span class="scilabid">s</span> <span class="scilaboperator">=</span> <a class="scilabcommand" href="scilab://sin">sin</a><span class="scilabopenclose">(</span><span class="scilabnumber">2</span><span class="scilaboperator">*</span><span class="scilabconstants">%pi</span><span class="scilaboperator">*</span><span class="scilabnumber">2</span><span class="scilaboperator">*</span><span class="scilabid">t</span><span class="scilabopenclose">)</span><span class="scilaboperator">+</span> <a class="scilabcommand" href="scilab://cos">cos</a><span class="scilabopenclose">(</span><span class="scilabnumber">2</span><span class="scilaboperator">*</span><span class="scilabconstants">%pi</span><span class="scilaboperator">*</span><span class="scilabnumber">5</span><span class="scilaboperator">*</span><span class="scilabid">t</span><span class="scilabopenclose">)</span><span class="scilabdefault">;</span> +<span class="scilabcomment">// Adding noise</span> +<span class="scilabid">x</span> <span class="scilaboperator">=</span> <span class="scilabid">s</span> <span class="scilaboperator">+</span> <span class="scilabnumber">0.1</span><span class="scilaboperator">*</span><span class="scilabid">randn</span><span class="scilabopenclose">(</span><a class="scilabcommand" href="scilab://size">size</a><span class="scilabopenclose">(</span><span class="scilabid">s</span><span class="scilabopenclose">)</span><span class="scilabopenclose">)</span><span class="scilabdefault">;</span> +<span class="scilabid">y</span> <span class="scilaboperator">=</span> <span class="scilabid">medfilt1</span><span class="scilabopenclose">(</span><span class="scilabid">x</span><span class="scilabopenclose">)</span><span class="scilabdefault">;</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> + <ul class="itemizedlist"><li class="member"><a href="scilab://filter" class="link">| hampel | median | sgolayfilt</a></li></ul></div> + +<div class="refsection"><h3 class="title">Authors</h3> + <ul class="itemizedlist"><li class="member">Ayush Baid</li></ul></div> + <br /> + + <div class="manualnavbar"> + <table width="100%"> + <tr><td colspan="3" class="next"><a href="http://bugzilla.scilab.org/enter_bug.cgi?product=Scilab%20software&component=Documentation%20pages" class="ulink">Report an issue</a></td></tr> +<tr> + <td width="30%"> + <span class="previous"><a href="marcumq.html"><< marcumq</a></span> + + </td> + <td width="40%" class="center"> + <span class="top"><a href="section_cc2bc01c47967d47fcf3507a91d572ba.html">FOSSEE Signal Processing Toolbox</a></span> + + </td> + <td width="30%" class="next"> + <span class="next"><a href="mexihat.html">mexihat >></a></span> + + </td> + </tr></table> + <hr /> + </div> + </body> +</html> |