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<HTML>
<HEAD>
<TITLE>Fitting parameters</TITLE>
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<P><font size="+3" color="green"><B>Fitting parameters</B></font></P>
<TABLE border="1" cols="2" frame="box" rules="all" width="572">
<TR>
<TD width="15%" valign="top"><B>Syntax</B>:</TD>
<TD width="85%" valign="top"><CODE>
SCALAR\FIT s1 { s2 ... }<br />
SCALAR\FIT s1[s1min:s1max] { s2[s2min:s2max] ... }</CODE>
</TD></TR>
</TABLE>
<P>
The <CODE>SCALAR\FIT</CODE> command defines <CODE>sI</CODE> to be a scalar variable and
allows <CODE>sI</CODE>
to vary for a <CODE><a href="../FitCommand/fitcommand.htm">FIT</a></CODE> command or a
<CODE><a href="../MinuitCommand/minuitcommand.htm">MINUIT</a></CODE> command. If
<CODE>sI</CODE> already is a scalar, the value of <CODE>sI</CODE> will be
unchanged. If <CODE>sI</CODE> is an existing variable, but not a scalar, it will be destroyed first. If
<CODE>sI</CODE> does not exist, it will be created and initialized to <CODE>1</CODE>.</P>
<P>
Use the <CODE>SCALAR</CODE> command with no
qualifier to fix a scalar, that is, to not allow it to vary in a fitting procedure.</P>
<P>
The <CODE>SCALAR</code> command allows for limits to be placed
on a fitting parameter. Use the <CODE>a[amin:amax]</code>
syntax to create fit parameter <CODE>a</code> with lower limit
<CODE>amin</code> and upper limit
<CODE>amax</code>. To set an upper limit only, use
<CODE>a[:amax]</code>, and to set a lower limit only, use
<CODE>a[amin:]</code>. These limits are only used by the
<CODE>MINUIT</code> command and are ignored by the
<CODE>FIT</code> command.</P>
<P>
<a href="scalarcommand.htm"><img src="../shadow_left.gif">
<font size="+1" color="olive">SCALAR command</font></a></P>
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