Ability to show all feature dimensions on the same plot.

[damellis]

Sometimes, it's useful to see the different dimensions of a feature vector on the same plot, in different colors, as with the live data stream. For instance, one dimension might be live data and another a threshold for that data. The example author should probably have a way to specify how the features are plotted at each stage in the pipeline: as separate (vertically-stacked) plots, as a single plot (with multiple colored lines), or as a changing spectrum. Eventually, we probably want to allow the example author to write their own visualization functions (although that's probably a separate issue).