n class="r-pr">#&gt;</span> ------------------------------------------------------------ </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> ipdna_md$centre: 9</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.   :2494   Min.   :9   0:630   Min.   :16.79  </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  1st Qu.:2   1st Qu.:25