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Table 6 Results of mature bamboo fractions predicted by identification models based on PLS-DA

From: Rapid determination of chemical composition and classification of bamboo fractions using visible–near infrared spectroscopy coupled with multivariate data analysis

Wavelength (nm)

Fractions

No. of prediction samples

Correct no.

Accuracy (%)

400–780 (n = 100)

B

8

8

100

I

8

8

100

K

8

7

87.50

M

8

8

100

O

8

8

100

780–2500 (n = 100)

B

8

8

100

I

8

8

100

K

8

8

100

M

8

8

100

O

8

8

100

400–2500 (n = 100)

B

8

8

100

I

8

8

100

K

8

8

100

M

8

8

100

O

8

8

100

  1. 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)