span>
<span>  iter <span class="op">=</span> <span class="fl">1000</span>,</span>
<span>  stop_criteria <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  search_width <span class="op">=</span> <span class="fl">1</span>,</span>
<span>  step_size <span class="op">=</span> <span class="fl">100</span>,</span>
<span>  verbose <span class="op">=</span> <span class="cn">TRUE</span>,</span>
<span>  fileName <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  particle_factor <