Official Journal of the Japan Wood Research Society
Table 5 The significance of the effect of individual factors on changes in b* value
From: Impact of thermal modification on color and chemical changes of spruce and oak wood
Monitored factor | Sum of squares | Degree of freedom | Variance | Fisher’s F test | Significance level p |
|---|---|---|---|---|---|
Absolute term | 29,080.48 | 1 | 29,080.48 | 21251.79 | *** |
Wood species “WS” | 1175.91 | 1 | 1175.91 | 859.35 | *** |
Thermal modification “TM” | 1942.05 | 3 | 647.35 | 473.08 | *** |
WS × TM | 444.39 | 3 | 148.13 | 108.25 | *** |
Error | 98.52 | 72 | 1.37 |