Using ordinal logistic regression to evaluate the performance of laser-Doppler predictions of burn-healing time

Table 6 Classification performance of: (A), the current palette, taking color boundaries in the center of 'buffer' colors at 230 and 520 PU.

A) Current	Pred. < 14 days	Pred. 14–21 days	Pred. > 21 days
Obs. < 14 days	160	26	0
Obs. 14–21 days	5	39	3
Obs > 21 days	0	3	25
	% wrong	% av. wrong per class
	14.2	13.9
B) Optimized	Pred. < 14 days	Pred. 14–21 days	Pred. > 21 days
Obs. < 14 days	175	11	0
Obs. 14–21 days	8	36	3
Obs > 21 days	0	3	25
	% wrong	% av. wrong per class
	9.6	13.3
C) Mean flux	Pred. < 14 days	Pred. 14–21 days	Pred. > 21 days
Obs. < 14 days	176	10	0
Obs. 14–21 days	7	38	2
Obs > 21 days	0	3	25
	% wrong	% av. wrong per class
	8.4	11.8

Note that the current palette was not designed to be used in this way! For (B), the optimized palette, the flux boundaries are 241 and 452 PU. Lastly, (C), using mean flux as a classifier, flux boundaries are 250 and 465 PU.

ISSN: 1471-2288