0 39.99 20.00 22.51</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> [13] 25.02 40.01</span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># Create ID column to curve fit by ID and temperature</span></span></span>
<span class="r-in"><span><span class="va">data</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://tidyr.tidyverse.org/reference/unite.html" class="external-link">unite</a></span><span class="op">(</span><span class="va">data</spa