></span><span class="op">)</span></span></span>
<span class="r-in"><span><span class="fu">regress</span><span class="op">(</span><span class="st">"hazard"</span>, <span class="fu"><a href="https://rdrr.io/pkg/survival/man/Surv.html" class="external-link">Surv</a></span><span class="op">(</span><span class="va">obstime</span>, <span class="va">death</span><span class="op">)</span><span class="op">~</span><span class="va">age</span>, data<span class="op">=</span><span class="va">mri</span><span class="op">)</