Parallel coordinates: Difference between revisions

Revision as of 15:43, 21 November 2023

Revision as of 15:47, 21 November 2023

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== History ==

The idea of parallel coordinates is often said to originate in 1885 with the French mathematician [[Philbert Maurice d'Ocagne]]{{cite book |last=d'<ref>Ocagne|first=Maurice, |year=M. (1885). |title=Coordonnées parallèlesParallèles et axiales Axiales: Méthode de transformation géométrique et procédé nouveau de calcul graphique déduits de la considération des coordonnées parallèlles. Gauthier-Villars. https://archive.org/details/coordonnesparal00ocaggoog }}</ref>

transformation géométrique et procédé nouveau de calcul graphique déduits de la considération des coordonnées parallèles |publisher=Paris: Gauthier-Villars |url=https://archive.org/details/coordonnesparal00ocaggoog }}</ref>

who sought a way to provide graphic calculation of mathematical functions with alignment diagrams or [[nomogram]]s using parallel axes with different scales.

A three-variable equation, for example, could be solved using three parallel axes, where known values could be marked on their scales, a line drawn between them, and an unknown read on its scale at the point where the line intersects that scale.

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However, both d'Ocagne and Gannet were far preceded in this by [[André-Michel Guerry]]

{{cite book |last=<ref>Guerry, |first=AndréA.-MichelM. (1833). |title=Essai sur la Statistique Morale de la France. Paris: Crochard.</ref>, Plate IV, "Influence de l'Age",

|publisher=Paris:Crochard |year:1833}}, Plate IV, "Influence de l'Age",

where he showed rankings of crimes against persons by age along parallel axes, connecting the same crime across age groups.

<ref>Friendly, M. (2022). The life and works of André-Michel Guerry, revisited. Sociological Spectrum, 42(4-6), 233–259. https://doi.org/10.1080/02732173.2022.2078450</ref>.