. Author manuscript; available in PMC: 2017 Mar 1.

Published in final edited form as: Ann Biomed Eng. 2016 Jan 27;44(3):680–692. doi: 10.1007/s10439-015-1536-8

TABLE 1.

Results of PLS models in the spectral range 8000–4000 cm⁻¹ for prediction of engineered cartilage composition from three combined experiments

Component	Number of factors	Relative error of calibration (%)	R²	Relative error of validation (%)	R²
Water	4	7	0.74	8	0.57
sGAG (PG) (wt%/wet wt)	5	6	0.79	8	0.66
Collagen (wt%/wet wt)	8	6	0.80	9	0.58