uent data analysis, we will
want to import a few more libraries that can allow us to understand the
differences between which patient populations are being captured. I’ll
draw a few concepts from set theory in order to make some of the key
points, because although the differences in gross outcomes (i.e. hard
outcomes: death and dialysis) are substantial, to tease apart the
differences in definitions requires some probing.</p>
<div class="sourceCode" id="cb1"><pre class="sourceCode r"><code class="sourceC