study entire
systems.</p>
<p>But <a href="https://en.wikipedia.org/wiki/Wouldn%27t_It_Be_Nice" class="external-link">wouldn‚Äôt it
be nice</a> if there were an easy way to create <code>R</code> data
frames whose entries were not numbers but entire matrices? If that were
possible, matrix algebra could be performed on columns of similar
matrices.</p>
<p>That‚Äôs the reason for <code>matsindf</code>. It provides functions to
convert a suitably-formatted <a href="https://tidyr.tidyverse.org/articles/tid