Treemaps, with their easy to understand comparisons of metrics, are a useful starting tool for marketers expanding their data visualization skills.

My best guess to what was causing this is that your TreeMap contained non-static inner class instances and that your outer class wasn't serializable or it contained a member that wasn't.

Newsmap is a news aggregation tool that organizes news stories, by popularity and volume of reporting, in a visually pleasing treemap—making it extrem ...

java -jar treemap.jar Open the TM3 file that you just generated. Then, on the right-hand side, choose Hierarchy. Click on DEFAULT HIERARCHY and then REMOVE. Then click on SIP and Add. Do the same ...

Many Eyes is a Java-based service that allows you to upload a data set and then graph it in an incredible range of styles. First, you will need to register (for free) with IBM’s Alphaworks and ...