Table 2: The result for sPLS without basis expansion and with, respectively, for 100 simulated data sets.

Knots distance 1st component2nd component
SensitivitySpecificityC-indexSensitivitySpecificityC-index

Original sPLS: without basis expansion
040500.260.990.250.300.990.29
1000.340.990.330.390.990.38
80500.370.990.360.431.000.43
1000.390.990.380.441.000.44

RBF-sPLS: with basis expansion
240501.000.600.601.000.680.68
1001.000.860.861.000.870.87
80501.000.730.731.000.750.75
1001.000.840.841.000.880.88
440501.000.290.291.000.130.13
1001.000.290.291.000.040.04
80501.000.270.271.000.130.13
1001.000.210.211.000.080.08
840501.000.080.081.000.060.06
1001.000.050.051.000.000.00
80501.000.050.051.000.010.01
1001.000.020.021.000.000.00