ing a table:</p>
<p><code>popsize &lt;- with(MySurveyFrame,
    table(Ecoregion, Type))</code></p>
<p>Example popsize for post-stratification using an xtabs object:</p>
<p><code>popsize &lt;- xtabs(~Ecoregion + Type,
    data = MySurveyFrame)</code></p></dd>


<dt>vartype</dt>
<dd><p>Character value providing the choice of the variance
estimator, where <code>"Local"</code> indicates the local mean estimator,
<code>"SRS"</code> indicates the simple random sampling estimator, <code>"HT"</code>
indicates the H