---------</span></span>
<span><span class="co">#&gt; Coefficients:</span></span>
<span><span class="co">#&gt;             elevation     slope</span></span>
<span><span class="co">#&gt; estimate    0.8797718 0.6363038</span></span>
<span><span class="co">#&gt; lower limit 0.4999123 0.4955982</span></span>
<span><span class="co">#&gt; upper limit 1.2596314 0.8169572</span></span>
<span><span class="co">#&gt; </span></span>
<span><span class="co">#&gt; H0 : variables uncorrelated</span></span>
<span><span clas