untie (and runtie)

unlink previously linked parameters

Untie the specified parameter from any links to other parameters.

Syntax:	untie	<param range>

where <param range> is of the form

<param range> =:: [<modelName>:]<param #>

For response parameters (see gain command):

	runtie	<param range>

where <param range> is of the form

<param range> =:: [<sourceNum>:]<param #>

Parameters previously linked together with commands such as

XSPEC12>newpar <param spec>

are unlinked. The parameter will retain its current value for the next fit.