pan class="op">]</span><span class="op">)</span></span>
<span><span class="co">#&gt; 'data.frame':    26 obs. of  3 variables:</span></span>
<span><span class="co">#&gt;  $ Chemical   : 'AsIs' num [1:26, 1:14] 3.21 3.26 5.18 3.75 2.92 ...</span></span>
<span><span class="co">#&gt;   ..- attr(*, "dimnames")=List of 2</span></span>
<span><span class="co">#&gt;   .. ..$ : chr [1:26] "1" "2" "3" "4" ...</span></span>
<span><span class="co">#&gt;   .. ..$ : chr [1:14] "PEU" "Sta." "TotN" "Phy." ...</span></span>