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An Application of Multivariate Analysis in Astronomy
Author(s) -
Nathanson James A.
Publication year - 1971
Publication title -
journal of the royal statistical society: series c (applied statistics)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.205
H-Index - 72
eISSN - 1467-9876
pISSN - 0035-9254
DOI - 10.2307/2346754
Subject(s) - multivariate statistics , multivariate analysis , mathematics , statistics
Summary Discriminant function analysis is applied to astronomical data. The conventional morphological classification of 273 galaxies into ten groups is used to obtain discriminant functions based on seven physical characteristics. These functions are used to determine how well the physical characteristics could serve as a predictor of morphological type. The results suggest certain shortcomings of the morphological classification scheme.