 be used as input for the graphical
interface tutorial.</li>
</ul>
<div class="section level2">
<h2 id="data-format">Data format<a class="anchor" aria-label="anchor" href="#data-format"></a>
</h2>
<p>In short, for a given variable, each measurement (observation) is a
row in a vector.</p>
<p>If more than one variable has been measured at a given time, multiple
measurement columns can be provided in a Data.Frame (<code>data</code>)
with observations as rows and variables as columns.</p>
<p>For each data point