e, when <code>resample == 1</code>, if <span class="math inline">\(N = 4,\)</span> the value of <code>boot_idxs</code> might be <code>{2, 1, 1, 3}</code>, resulting in a bootstrap sample <code>{y[2], y[1], y[1], y[3]}</code> with the first element repeated twice and the fourth element not sampled at all.</p>
<p>The parameters are the usual regression coefficients for the intercept <code>alpha</code>, slope <code>beta</code>, and error scale <code>sigma</code>. The model uses the bootstrap index variable <co