code>).</p></dd>


<dt>kd</dt>
<dd><p>numeric vector. Parameterizes how many times stronger the confounder is related to the treatment in comparison to the observed benchmark covariate.
Default value is <code>1</code> (confounder is as strong as benchmark covariate).</p></dd>


<dt>ky</dt>
<dd><p>numeric vector. Parameterizes how many times stronger the confounder is related to the outcome in comparison to the observed benchmark covariate.
Default value is the same as <code>kd</code>.</p></dd>


<dt>reduce<