ock; margin: auto;" /&gt;

---

##Row-wise or column-wise checks?

&lt;img src="pics/colrow3.png" width="75%" style="display: block; margin: auto;" /&gt;

---

##Row-wise *and* column-wise constraints!
  
* `dataMaid` performs class dependent checks for each variable in a dataset, one at a time (column-wise)
  + Pros: Easy to document what was (not) done, let's you get started without a lot of prior knowledge, easy to share with collaborators
  + Shortcomings: Generally cannot detect internal consistency is