 class="external-link">aes</a></span><span class="op">(</span>x<span class="op">=</span><span class="va">t.j</span>, y<span class="op">=</span><span class="va">value</span>, group<span class="op">=</span><span class="va">variable</span><span class="op">)</span>,color<span class="op">=</span><span class="st">"grey"</span><span class="op">)</span> <span class="op">+</span></span>
<span>  <span class="fu"><a href="https://ggplot2.tidyverse.org/reference/geom_path.html" class="external-link">geom_line</a></span