Official Journal of the Japan Wood Research Society
Table 7 The significance of the effect of individual factors on changes in ΔE* 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 | 27,456.25 | 1 | 27,456.25 | 6004.204 | *** |
Wood species “WS” | 56.89 | 1 | 56.89 | 12.440 | *** |
Thermal modification “TM” | 18077.73 | 3 | 6025.91 | 1317.762 | *** |
WS × TM | 255.27 | 3 | 85.09 | 18.608 | *** |
Error | 329.24 | 72 | 4.57 |