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<?xml version="1.0" encoding="UTF-8"?>
<!--
*
* This help file was generated from fwhmjlt.sci using help_from_sci().
*
-->
<refentry version="5.0-subset Scilab" xml:id="fwhmjlt" xml:lang="en"
xmlns="http://docbook.org/ns/docbook"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:svg="http://www.w3.org/2000/svg"
xmlns:ns3="http://www.w3.org/1999/xhtml"
xmlns:mml="http://www.w3.org/1998/Math/MathML"
xmlns:scilab="http://www.scilab.org"
xmlns:db="http://docbook.org/ns/docbook">
<refnamediv>
<refname>fwhmjlt</refname>
<refpurpose>This function Computes peak full-width at half maximum</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>Calling Sequence</title>
<synopsis>
f = fwhm (y)
f = fwhm (x, y)
f = fwhm (…, "zero")
f = fwhm (…, "min")
f = fwhm (…, "alevel", level)
f = fwhm (…, "rlevel", level)
</synopsis>
</refsynopsisdiv>
<refsection>
<title>Description</title>
<para>
Compute peak full-width at half maximum (FWHM) or at another level of peak maximum for vector or matrix data y, optionally sampled as y(x). If y is a matrix, return FWHM for each column as a row vector.<para></para>The default option "zero" computes fwhm at half maximum, i.e. 0.5*max(y). The option "min" computes fwhm at the middle curve, i.e. 0.5*(min(y)+max(y)). <para></para>The option "rlevel" computes full-width at the given relative level of peak profile<para></para>The option "alevel" computes full-width at the given absolute level of y.
</para>
</refsection>
<refsection>
<title>Examples</title>
<programlisting role="example"><![CDATA[
t=-50:0.01:50;
y=(1/(2*sqrt(2*%pi)))*exp(-(t.^2)/8);
z=fwhmjlt(y)
//Expected Output
//470.96442
]]></programlisting>
</refsection>
</refentry>
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