ass='fu'><a href='https://rdrr.io/r/base/data.frame.html'>data.frame</a></span><span class='op'>(</span>trend <span class='op'>=</span> <span class='fl'>1</span><span class='op'>:</span><span class='fl'>200</span>, foo <span class='op'>=</span> <span class='fu'><a href='https://rdrr.io/r/stats/Uniform.html'>runif</a></span><span class='op'>(</span><span class='fl'>200</span>, <span class='op'>-</span><span class='fl'>1</span>, <span class='fl'>1</span><span class='op'>)</span><span class='op'>)</span>
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