<span class='op'>=</span><span class='fu'><a href='https://rdrr.io/r/stats/Normal.html'>rnorm</a></span><span class='op'>(</span><span class='va'>nzc</span><span class='op'>)</span>
<span class='va'>fx</span><span class='op'>=</span><span class='va'>x</span><span class='op'>[</span>,<span class='fu'><a href='https://rdrr.io/r/base/seq.html'>seq</a></span><span class='op'>(</span><span class='va'>nzc</span><span class='op'>)</span><span class='op'>]</span><span class='op'>%*%</span><span class='va'>beta</spa