Robust PLS Prediction Model for Saikosaponin A in Bupleurum chinense DC. Coupled with Granularity-Hybrid Calibration Set

Table 3

Concentration range of SSA in calibration and validation set (mg⋅g⁻¹).

Sample set	Numbers	Concentration range	Average	Standard deviation
Calibration	60	1.476–8.162	3.695	1.452
Validation	30	1.601–5.807	3.727	1.269