This is a really interesting post. I have to say the data science team at Stitchfix are clearly doing really good, <i></i>applied<i></i> work that is central to their business. It&#x27;s so cool to see.<p>Here&#x27;s a tip for any R users who read through the code and (like me) is pained by repetition. Instead of using<p><pre><code>    library(lubricate)
    library(bts)
    library(...)
</code></pre>
Just use apply!<p><pre><code>    packages &lt;- c(&quot;lubricate&quot;, &quot;bts&quot;, &quot;...&quot;)
    lapply(packages, library, character.only = TRUE)</code></pre>