_md</span>, <span class="va">ipdna_md</span><span class="op">$</span><span class="va">centre</span>, <span class="va">summary</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> ipdna_md$centre: 1</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>       .imp        .id            centre  gender        bmi       </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  Min.   :1   Min.   :  1.0   Min.   :1   0:1015   Min.   :11.59  </span>
