eu</span><span class="op">)</span><span class="op">[</span><span class="fl">5</span><span class="op">:</span><span class="fl">7</span><span class="op">]</span> <span class="op">&lt;-</span> <span class="st">"w2"</span>
<span class="va">Veu</span>
<span class="co">#&gt;      [,1] [,2] [,3] [,4] [,5] [,6] [,7]</span>
<span class="co">#&gt; [1,] "v2" "0"  "0"  "0"  "0"  "0"  "0" </span>
<span class="co">#&gt; [2,] "0"  "v2" "0"  "0"  "0"  "0"  "0" </span>
<span class="co">#&gt; [3,] "0"  "0"  "v2" "0"  "0"  "0