Wavelength (nm)
|
Sample sets
|
Parameters
|
B
|
I
|
K
|
M
|
O
|
---|
400–780 (n = 100)
|
Calibration
|
R
2
|
0.96
|
0.88
|
0.81
|
0.93
|
0.93
|
SEC
|
0.08
|
0.14
|
0.17
|
0.11
|
0.11
|
Validation
|
R
2
|
0.90
|
0.77
|
0.69
|
0.71
|
0.83
|
SEV
|
0.13
|
0.19
|
0.23
|
0.21
|
0.17
|
Factors
|
13
|
13
|
13
|
13
|
13
|
780–2500 (n = 100)
|
Calibration
|
R
2
|
0.98
|
0.94
|
0.93
|
0.97
|
0.97
|
SEC
|
0.05
|
0.10
|
0.10
|
0.08
|
0.07
|
Validation
|
R
2
|
0.93
|
0.76
|
0.76
|
0.85
|
0.90
|
SEV
|
0.11
|
0.20
|
0.20
|
0.16
|
0.13
|
Factors
|
16
|
16
|
16
|
16
|
16
|
400–2500 (n = 100)
|
Calibration
|
R
2
|
0.98
|
0.98
|
0.96
|
0.97
|
0.96
|
SEC
|
0.06
|
0.06
|
0.08
|
0.07
|
0.08
|
Validation
|
R
2
|
0.94
|
0.95
|
0.87
|
0.90
|
0.91
|
SEV
|
0.10
|
0.09
|
0.14
|
0.13
|
0.12
|
Factors
|
15
|
15
|
15
|
15
|
15
|
- Three regions of wavelength were selected to establish models, and these spectra came from original data. The number of sample sets was 100. (B bamboo branch, I bamboo yellow, K bamboo node, M bamboo timber, O bamboo green)