<div class="figure" style="text-align: center">
<img src="figures/13_ml_abstraction_crop.png" alt="Basic building blocks of the mlr package. Source: http://bit.ly/2tcb2b7. (Permission to reuse this figure was kindly granted.)" width="862" />
<p class="caption">(\#fig:building-blocks)Basic building blocks of the mlr package. Source: http://bit.ly/2tcb2b7. (Permission to reuse this figure was kindly granted.)</p>
</div>