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Table IV
Multiple regression equations of the deviations (Δtanδ) from standard damping as a function of colour, moisture-related properties and extractives content. Numbers in brackets are beta coefficients.
| Equation | R 2 | Standard error | ||||
|---|---|---|---|---|---|---|
| Model 1 (Indicators measured on same specimens, in identical conditions, N = 70) | ||||||
| Δtanδ = | –103 | +6.7 EMC | +0.49 L* | 0.60 | 13.4 | |
| (0.42) | (0.41) | |||||
| Model 2 (Measured + database indicators, N = 48) | ||||||
| Δtanδ = | –75 | +2.3 FSP | +0.62 L* | –0.62 h* | 0.76 | 10.1 |
| (0.64) | (0.49) | (–0.28) | ||||
| Model 3 (Database indicators, N = 25) | ||||||
| Δtanδ = | –53 | –1.1 AB | +1.7 FSP | 0.62 | 9.1 | |
| (–0.43) | (0.43) | |||||