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Heritage Science

Table 3 Statistics of the hardness of Calibration and Prediction

From: Prediction model of the hardness of waterlogged archaeological wood based on NIR spectroscopy

 

N

Max/HC

Min/HC

Mean/HC

Std Dev/HC

Calibration

158

92.6

44.1

73.2

13.46

Prediction

39

91.4

45.7

72.3

13.27

  1. N: number of samples; Max: Maximum value of hardness; Min: Minimum value of hardness; Mean: Mean hardness; Std Dev: Standard deviation; HC is the unit of type C Shore hardness
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