these tensors along a
  \((K+1)\)th mode to form a new tensor \(Y\) and apply the
  <code><a href="demean_tensor.html">demean_tensor()</a></code> function to Y which will return a tensor
  that satisfies the mean-zero assumption.</p>
<p>The details of the methods in this package can be found in
  <a href="https://doi.org/10.1016/j.jmva.2015.01.020" class="external-link">Gerard
  and Hoff (2015)</a> and <a href="https://doi.org/10.1016/j.laa.2016.04.033" class="external-link">Gerard
  and Hoff (2016)</a>.</p