a IDs.  For each stratum, the format of the
  vector is identical to the format described for unstratified single-stage
  and two-stage designs.  Note that the finite population correction factor
  is not used with the local mean variance estimator.</p>
<p>Example fpc for a single-stage unstratified survey design:</p>
<p><code>fpc &lt;- 15000</code></p>
<p>Example fpc for a single-stage stratified survey design:</p>
<p><code>fpc &lt;- list(
    Stratum_1 = 9000,
    Stratum_2 = 6000)
   </code></p>
<p>Examp