The idea of using
graphical models to represent correlations has a notable application in
genomic mapping, though the iconography of correlations is more general for not assuming the
probability distribution, since it only relies on representing the
correlation coefficients geometrically. The iconography of correlations first dates to 1975, applied to
marine geochemistry in a 1981 thesis, and later in a 1982
data analysis article. Afterwards, the method was applied widely in the
aerospace industry but for about fifteen years manufacturers kept it fairly confidential; generally, they preferred not to broadcast useful techniques to their competitors. In 1997 the first company was incorporated to distribute iconography of correlations software. Since then the topic of iconography of correlations has been incorporated into university courses, and typical topical articles' citation lists have rapidly and greatly expanded, particularly in the fields of medicine and
mass spectrometry. == See also ==