|Libraries like dimple.js provide an easy way to create D3.js-based charts, so long as the simplicity of your dataset matches the simplicity of the tool.|
What all of these D3-based products omit, however, is the ability to visualize disparate data types at will. You simply can't fire up NVD3.js or dimple.js and turn your Excel data into, for example, a network graph overlaid on a map of the United States.
|D3.js enables visualizations that can include several types of data. In this case, geo-coded data, pairwise relationships, and extensive data are displayed simultaneously.|
And so that's why we spend our time developing in D3. It allows us to break out of the X-Y mold of data visualization and layer on additional details that conventional charts omit There's no wizard for it, but the investment in one-of-a-kind visualizations enables analysis that would be impossible if limited to just X and Y.