signed to import mouse-tracking data saved in a
wide format. The defaults are set so that usually only the <code>raw_data</code>
need to be provided when data have been collecting using MouseTracker
(Freeman &amp; Ambady, 2010) and have been read into R using <a href="read_mt.html">read_mt</a>.</p>
<p>If no <code>pos_ids</code> are provided, column labels for the respective variable
(e.g., x-positions) are extracted using <code><a href="https://rdrr.io/r/base/grep.html" class="external-link">grep</a></code>