lass="r-in"><span>                           maxit <span class="op">=</span> <span class="va">iters</span><span class="op">)</span></span></span>
<span class="r-out co"><span class="r-pr">#&gt;</span> # weights:  21</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> initial  value 2487.870002 </span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  10 value 1587.516208</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> iter  20 value 1349.706741</span>
<span class="r-out co