Table 3. Test error rates (standard errors): Classes equidistant.

			Absolute Value of Correlation
Algorithm	Centroids	Covariance	0.00		0.40		0.65		0.90
PAM	shrunken*	diagonal	0.15	(0.07)	0.15	(0.06)	0.18	(0.07)	0.29	(0.08)
Clanc	unshrunken	unrestricted	0.30	(0.08)	0.28	(0.08)	0.28	(0.07)	0.11	(0.07)
Clanc	shrunken	unrestricted	0.27	(0.09)	0.27	(0.08)	0.26	(0.10)	0.09	(0.07)
Clanc	unshrunk.	diagonal	0.07	(0.04)	0.08	(0.04)	0.10	(0.04)	0.19	(0.07)
Clanc	shrunken	diagonal	0.06	(0.04)	0.08	(0.04)	0.10	(0.05)	0.19	(0.07)
Clanc	unshrunk.	shrunken	0.30	(0.08)	0.28	(0.08)	0.28	(0.07)	0.06	(0.04)
Clanc	shrunken	shrunken	0.27	(0.09)	0.27	(0.08)	0.26	(0.10)	0.06	(0.04)

^*Shrinkage in this case takes place across classes rather than across features.