ex <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/numeric.html" class="external-link">as.numeric</a></span><span class="op">(</span><span class="va">IPD</span><span class="op">[</span><span class="va">i</span>,<span class="st">"SEX"</span><span class="op">]</span><span class="op">)</span>, <span class="co">#Record sex of individual patient. 0 = Female; 1 =Male</span></span>
<span>  BLAge <span class="op">=</span> <span class="fu"><a href="https://rdrr.io/r/base/numeric.html" clas