Table 5.

The optimum composite fingerprints identified by the LDA.

Basic
Two-cluster	B, HI, RI
Three-cluster	HI, SIRM, BackIRM, G, HRGB
Four-cluster	RI, SIRM, BackIRM, G, HRGB, R
Geology classification 1	SIRM, BackIRM, HRGB, SI, CI
Geology classification 2	B, HI, RI, SIRM, BackIRM, G, HRGB, SI, CI, χlf, χfd, χARM, SRGB

Conservative
Two-cluster	B, HI, RI, G, HRGB, SI, CI, IRGB
Three-cluster	B, HI, RI, SIRM, BackIRM, G, HRGB, SI, CI, χlf, χfd, χARM, SRGB, IRGB, HIRM
Four-cluster	B, HI, RI, SIRM, BackIRM, G, HRGB, R, SI, CI, χlf, χfd, χARM, SRGB, IRGB, HIRM
Geology classification 1	B, RI, SIRM, BackIRM, HRGB, SI, CI, χlf, χfd, χARM, SRGB, HIRM
Geology classification 2	B, HI, RI, SIRM, BackIRM, G, HRGB, SI, CI, χlf, χfd, χARM, SRGB, IRGB, HIRM

High variability
Two-cluster	B, RI, HRGB
Three-cluster	RI, BackIRM, G, CI, χlf, χfd
Four-cluster	B, RI, BackIRM, G, HRGB, χfd
Geology classification 1	BackIRM, SI, χfd, χARM
Geology classification 2	B, HI, RI, SIRM, BackIRM, χlf, χfd, χARM