<div class="figure" style="text-align: center">
<img src="figures/graphics-tripleAgeEyePlot-1.png" alt="Transitioning from a continuous X variable to a categorical X variable with three levels." width="359.05536" />
<p class="caption">(\#fig:tripleAgeEyePlot)Transitioning from a continuous X variable to a categorical X variable with three levels.</p>
</div>