>
<span class="r-out co"><span class="r-pr">#&gt;</span>   default: 1</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [Number of threads for parallel computing]</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   name: memory, type: integer, required: no, multiple: no</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   default: 300</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>   keydesc: memory in MB, keydesc_count: 1</span>
<span class="r-out co"><span 