Official Journal of the Japan Wood Research Society
Table 3 The significance of the effect of individual factors on changes in a* 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 | 4047.534 | 1 | 4047.534 | 14944.73 | *** |
Wood species “WS” | 33.605 | 1 | 33.605 | 124.08 | *** |
Thermal modification “TM” | 127.347 | 3 | 42.449 | 156.74 | *** |
WS × TM | 189.098 | 3 | 63.033 | 232.74 | *** |
Error | 19.500 | 72 | 0.271 |