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2007 Mar 03
2
format of summary.lm for 2-way ANOVA
Hi,
I am performing a two-way ANOVA (2 factors with 4 and 5 levels,
respectively). If I'm interpreting the output of summary correctly,
then the interaction between both factors is significant:
,----
| ## Two-way ANOVA with possible interaction:
| > model1 <- aov(log(y) ~ xForce*xVel, data=mydataset)
|
| > summary(model1)
| Df Sum Sq Mean Sq F value Pr(>F)
| xForce 3 16.640 5.547 19.0191 1.708e-11 ***
| xVel 4 96.391 24.098 82.6312 < 2.2e-16 ***
| xForce:xVel 12 10.037 0.836 2.8681 0.0008528 ***
| Residuals 371 108.194...