One of the most common map visualizations is to show a collection of features and an associated numeric value, for example annual rainfall or income levels in different places. Color-coding each feature based on its value is often the easiest way to visualize the data. But how to assign colors …

In late September and early October, Hurricane Matthew caused devastation in the Caribbean, especially in Haiti, before continuing up the Florida coast. Using data from Weather Underground, we show how to map its trajectory and visualize its intensity and storm status. 1. Create a new spreadsheet with Geosheets enabled. Either …