|
Parameter
|
N
|
Full spectra
|
CARS-optimized spectra
|
RF-optimized spectra
|
|---|
|
RMSEC
|
R
2
C
|
RMSECV
|
R
2
CV
|
RMSEC
|
R
2
C
|
RMSECV
|
R
2
CV
|
RMSEC
|
R
2
C
|
RMSECV
|
R
2
CV
|
|---|
|
Soluble sugars
|
40
|
2.14
|
0.90
|
2.78
|
0.81
|
0.88
|
0.95
|
1.98
|
0.91
|
1.63
|
0.95
|
2.07
|
0.90
|
|
Cellulose
|
45
|
0.70
|
0.93
|
0.96
|
0.86
|
0.47
|
0.96
|
0.71
|
0.93
|
0.74
|
0.94
|
0.89
|
0.89
|
|
Hemicellulose
|
45
|
0.20
|
0.96
|
0.46
|
0.93
|
0.27
|
0.97
|
0.41
|
0.95
|
0.24
|
0.98
|
0.32
|
0.97
|
|
Lignin
|
45
|
0.48
|
0.88
|
0.87
|
0.77
|
0.49
|
0.92
|
0.71
|
0.85
|
0.42
|
0.95
|
0.56
|
0.92
|
|
Ash
|
45
|
0.29
|
0.79
|
0.44
|
0.63
|
0.27
|
0.85
|
0.38
|
0.72
|
0.23
|
0.92
|
0.27
|
0.86
|
- N number of samples, CARS competitive adaptive reweighted sampling, RF random frog, RMSEC root mean standard error of calibration, R2C coefficient determination of calibration, RMSECV root mean standard error of cross-validation, R2CV coefficient determination of cross-validation
