gle-children-10 menuparent"><a href="../working-with-special-data-sets.html" class="sf-depth-3 menuparent">8. Working with Special Data Sets</a><ul><li id="menu-1285-1" class="first odd sf-item-1 sf-depth-4 sf-no-children"><a href="../working-with-special-data-sets/WHAT-IS-NON-GRIDDED-DATA.html" class="sf-depth-4">8.1 WHAT IS NON-GRIDDED DATA?</a></li><li id="menu-1286-1" class="middle even sf-item-2 sf-depth-4 sf-no-children"><a href="../working-with-special-data-sets/POINT-DATA.html" class="sf-depth-4">8.