 not as painting-like images but as model annotations in point plots.</p>
</section>
<section id="the-model-specification" class="level2 page-columns page-full">
<h2 class="anchored" data-anchor-id="the-model-specification">The model specification</h2>
<p>Two basic inputs go into constructing a model:</p>
<ol type="1">
<li>A data frame.</li>
<li>The <strong>model specification</strong>, which declares which column from the data frame will be the response variable and which other column(s) will be the explan