ady on the workers.
 Therefore, a UDF is sent to manipulate the data locally. In this case the global minimum number of examples is taken
 and the worker subsamples data to match that number of examples. The subsampling is done by multiplying with a
 Permutation Matrix with a global seed.

 Then all entries in the federation map of the input matrix are separated into MatrixObjects and returned as a list.
 Only supports row federated matrices atm.</div>
</li>
</ul>
</div>
<div class="summary">
<ul class="blo