"st">"rownames"</span><span class="op">)</span> <span class="op">&lt;-</span> <span class="fu"><a href="https://rdrr.io/r/base/colnames.html" class="external-link">rownames</a></span><span class="op">(</span><span class="va">weather_wind_dir</span><span class="op">)</span></span>
<span><span class="fu"><a href="../reference/h5attributes.html">h5attr</a></span><span class="op">(</span><span class="va">flights.grp</span><span class="op">[[</span><span class="st">"wind_speed"</span><span class="op">]</span><sp