Editing Parallel coordinates (section)

{{short description|Chart displaying multivariate data}}
[[Image:ParCorFisherIris.png|right|400px|Parallel coordinates]]
[[File:Ggobi-flea2.png|right|400px|alt=Ggobi-flea2|Parallel coordinate plot of the flea data in [[GGobi]].]]
'''Parallel Coordinates''' plots are a common method of visualizing [[multivariate data|high-dimensional datasets]] to analyze multivariate data having multiple variables, or attributes.

To plot, or visualize, a set of [[point (geometry)|points]] in [[n-dimensional space|''n''-dimensional space]], ''n'' [[parallel (geometry)|parallel]] lines are drawn over the background representing [[coordinate]] axes, typically oriented vertically with equal spacing. Points in ''n''-dimensional space are represented as individual [[polyline]]s with ''n'' [[vertex (geometry)|vertices]] placed on the parallel axes corresponding to each [[coordinate]] entry of the ''n''-dimensional point, vertices are connected with ''n-1'' polyline segments.

This data visualization is similar to [[time series]] visualization, except that Parallel Coordinates are applied to data which do not correspond with chronological time. Therefore, different axes arrangements can be of interest, including reflecting axes horizontally, otherwise inverting the attribute range.