ass='va'>grid</span> <span class='op'>&lt;-</span> <span class='fu'><a href='makeGrid.html'>makeGrid</a></span><span class='op'>(</span><span class='va'>gotaland</span>, <span class='fl'>10</span><span class='op'>)</span>
<span class='va'>ovB</span> <span class='op'>&lt;-</span> <span class='fu'>overlayBirds</span><span class='op'>(</span><span class='va'>ob</span>, <span class='va'>grid</span><span class='op'>)</span> 
</div><div class='output co'>#&gt; <span class='message'>1340 observations did not overl