MRC Cognition and Brain Sciences UnitCBSU bibliography search
To request a reprint of a CBSU publication, please
click here to send us an email (reprints may not be available for all publications)
Application of some statistical methods for comparing samples of hue-angle data.
Authors:
Chronicle, E. & Nimmo-Smith, I.
Reference:
Color Research and Application, 17, 375-378.
Year of publication:
1992
CBU number:
2790
Abstract:
Several colour spaces utilise angular measures of hue: for examples, CIE 1976 u, v hue-angle; CIE 1976 a, b hue-angle. Such measures are not amenable to conventional statistical analysis, unless a categorisation of hue-angles has previously been decided upon, in which case non-parametric tests are appropriate. In this paper we present two recently established methods which are appropriate for the parametric statistical analysis of hue-angle data from two or more samples: (i) a test of the equality of angular variances; (ii) a test of the equality of mean angles. These tests may be performed easily on a microcomputer and produce statistics conforming approximately to well-known distributions. We envisage that the tests will be of interest to psychologists and others working in the field of colour research.
