|
Parameter
|
N
|
Full spectra
|
CARS-optimized spectra
|
RF-optimized spectra
|
|---|
|
RMSEP
|
R
2
V
|
RPD
|
RER
|
RMSEP
|
R
2
V
|
RPD
|
RER
|
RMSEP
|
R
2
V
|
RPD
|
RER
|
|---|
|
Soluble sugars
|
13
|
2.17
|
0.91
|
3.07
|
14.18
|
2.55
|
0.85
|
2.61
|
12.07
|
1.57
|
0.94
|
4.24
|
19.60
|
|
Cellulose
|
14
|
0.75
|
0.92
|
3.21
|
17.49
|
0.61
|
0.93
|
3.95
|
21.51
|
0.54
|
0.94
|
4.46
|
24.29
|
|
Hemicellulose
|
14
|
0.39
|
0.95
|
4.18
|
19.12
|
0.23
|
0.98
|
7.08
|
32.42
|
0.35
|
0.95
|
4.65
|
21.31
|
|
Lignin
|
14
|
0.58
|
0.89
|
2.98
|
12.97
|
0.66
|
0.93
|
2.61
|
11.40
|
0.61
|
0.84
|
2.83
|
12.33
|
|
Ash
|
14
|
0.21
|
0.58
|
3.13
|
16.05
|
0.31
|
0.08
|
2.12
|
10.87
|
0.23
|
0.86
|
2.86
|
14.65
|
- N number of samples, CARS competitive adaptive reweighted sampling, RF random frog, RMSEP root mean square error of prediction, R2V coefficient determination of validation, RPD the ratio of performance to deviation, RER the range error ratio
