Table 3. Best Average Accuracy (in Percent), Standard Deviation, and Corresponding Dimensionality (in Brackets) Obtained on the Different Data Sets over 10 Random Splits^a.

data sets	PLS-DA	LPPLS-DA
coffee	80.00 ± 8.52(2)	100.00 ± 0.00(1)
Pacific cod	88.12 ± 8.04(4)	97.50 ± 4.37(3)
ink	71.37 ± 3.06(8)	100.00 ± 0.00(7)
wood	62.43 ± 5.01(4)	99.24 ± 0.51(15)

^aFor each data set, two-thirds of the data samples are used for training and the remaining one-third is used for testing.