span>
<span class="co">#&gt;   Ozone Solar.R Wind Temp Month Day</span>
<span class="co">#&gt; 1    41      NA  7.4   67     5   1</span>
<span class="co">#&gt; 2    36     118  8.0   72     5   2</span>
<span class="co">#&gt; 3    12     149 12.6   74     5   3</span>
<span class="co">#&gt; 4    18     313 11.5   62     5   4</span>
<span class="co">#&gt; 5    NA      NA 14.3   56     5   5</span>
<span class="co">#&gt; 6    28      NA 14.9   66     5   6</span></code></pre></div>
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