chor" href="#data-preparation"></a>
</h2>
<p>Once the <code>growthcleanr</code> package and its dependencies are
installed, the minimal input data vectors needed for cleaning data
are:</p>
<ol style="list-style-type: decimal">
<li>
<code>subjid</code> - a unique identifier for each subject; if you
have long (64-bit) integer <code>subjid</code> values, add the
<code>bit64</code> R package to your install list to ensure R will
process these correctly</li>
<li>
<code>param</code> - a string designating the mea