Parallel Coordinate graphs is a data visualization technique used in analyzing large sets of multivariate data. Each variable in the data plot is represented as its own Y Axis on the graph. A maximum point for each Y axis is selected, and they are scaled relatively to each other so that each variable takes up the same area in the graph space. Each line drawn represents a single observation as it relates to each variable. Lines are drawn across each variable for each observation.
The Parallel Coordiate graph above illustrates correlations in gene expression data for different species of drosophilia (fly genes).
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