>,</span> <span class="number">0</span><span class="keyword">,</span> <span class="number">0</span><span class="keyword">)</span><span class="keyword">,</span> <span class="functioncall"><a href='http://www.rdocumentation.org/packages/base/topics/c'>c</a></span><span class="keyword">(</span><span class="number">1</span><span class="keyword">,</span> <span class="number">0</span><span class="keyword">,</span> <span class="number">1</span><span class="keyword">,</span> <span class="number">0</span><span class