dd>


<dt>weight1</dt>
<dd><p>Character value providing name of the stage one weight
variable in <code>dframe</code>.  The default value is <code>NULL</code>.</p></dd>


<dt>xcoord1</dt>
<dd><p>Character value providing the name of the stage one
x-coordinate variable in <code>dframe</code>.  Note that x
coordinates are required for calculation of the local mean variance
estimator.  The default value is <code>NULL</code>.</p></dd>


<dt>ycoord1</dt>
<dd><p>Character value providing the name of the stage one
