 class="n">c</span> <span class="o">*</span> \
         <span class="p">(</span><span class="n">rng</span><span class="o">.</span><span class="n">dirichlet</span><span class="p">([</span><span class="n">dirichlet_sparsity</span><span class="p">]</span> <span class="o">*</span> <span class="n">n_features</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span> <span class="o">*</span> <span class="n">np</span><span class="o">.</span><span class="n">sqrt</span><span class="p">(</span><