 Y == 1". Note a colon, ':|:' is used rather than the traditional
conditioning marker '|' to avoid confusion with logical operators.</p></dd>


<dt id="arg-given">given<a class="anchor" aria-label="anchor" href="#arg-given"></a></dt>
<dd><p>A character vector specifying given conditions for each query.
A 'given' is a quoted expression that evaluates to logical statement.
<code>given</code> allows the query to be conditioned on either observed
or counterfactual distributions. A value of TRUE is interpreted a