an class="va">weather_wind_dir</span>, <span class="va">year</span> <span class="op">+</span> <span class="va">month</span> <span class="op">+</span> <span class="va">day</span> <span class="op">~</span> <span class="va">hour</span>, value.var <span class="op">=</span> <span class="st">"wind_dir"</span><span class="op">)</span></span></code></pre></div>
<pre><code><span><span class="co">## Aggregation function missing: defaulting to length</span></span></code></pre>
<div class="sourceCode" id="cb7"><pre cla