This is the Parallel Coordinates chart section of the gallery. If you want to know more about this kind of chart, visit data-to-viz.com. If you're looking for a simple way to implement it in d3.js, pick an example below.
The trickiest part of the parallel coordinate chart is to build one axis per group automatically. This concept is described in the first example below. Then, it is easy to add hover and color effect to highlight group differences, and to custom axis ranges.
The most basic Parallel Coordinates chart you can do in d3.js. Keeping only the core code.