t_boxplot()`).</span>
<span class="r-plt img"><img src="gr_plot_periods-1.png" alt="" width="960" height="593"></span>
<span class="r-in"><span></span></span>
<span class="r-in"><span><span class="co"># plot periods with change year from Pettitt test</span></span></span>
<span class="r-in"><span><span class="fu">gr_plot_periods</span><span class="op">(</span><span class="va">vars</span>, <span class="va">Qygr</span>, tests <span class="op">=</span> <span class="cn">TRUE</span><span class="op">)</span></span