Thanks for the reply - even if it's not within the design scope your test code reads much cleaner than the code I've used in the past (where perhaps naively I've manually transformed and presented each dimension individually where you've done a single normalise operation). For sure every tool fits a particular paradigm and parcoords are incredibly niche, but plotting aside from the demo code you provided I can see some general purpose uses for the transformations as well and definitely a good addition to the tool-belt. Good stuff!