pan> [3,]    1</span>
<span class='r-out co'><span class='r-pr'>#&gt;</span> [4,]    1</span>
<span class='r-out co'><span class='r-pr'>#&gt;</span> </span>
<span class='r-out co'><span class='r-pr'>#&gt;</span> $function.args$initial_est</span>
<span class='r-out co'><span class='r-pr'>#&gt;</span> [1] 1e+06 3e+03</span>
<span class='r-out co'><span class='r-pr'>#&gt;</span> </span>
<span class='r-out co'><span class='r-pr'>#&gt;</span> $function.args$formula</span>
<span class='r-out co'><span class='r-pr