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<code class="sourceCode R"><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_dir"</span><span class="op">]</span><span class="op">]</span>, <span class="st">"colnames"</span><span class="op">)</span></span></code></pre></div>
<pre><code><span><span class="co">##  [1] "0"  "1"  "2"  "3"  "4"  "5"  "6"  "7"  "8"  "9"  "10" "11" "12" "13" "14"</span></span>
<span><span 