  <p>A <code><a href='https://rdrr.io/r/stats/nls.html'>nls</a></code> output.</p>
    <h2 class="hasAnchor" id="references"><a class="anchor" href="#references"></a>References</h2>

    <p>Lessman, K. J. &amp; Atkins, R. E. (1963) Optimum plot size and relative
   efficiency of lattice designs for grain sorghum yield tests.
   <em>Crop Sci</em>., 3:477-481.</p>
    <h2 class="hasAnchor" id="author"><a class="anchor" href="#author"></a>Author</h2>

    <p>Anderson Rodrigo da Silva &lt;anderson.agro@