我有一个2 x 2阶乘设计(“密度”,“肥料”),带有块作为随机效果。我正在尝试预测植物的生长。我如何解释这张桌子?我已经检查过没有交互作用,它遵循ANOVA的假设
Sample data:
density <- c("low","low","low","low","high",high",high","high")
fertilizer <- c("N","N","P","P","N","N","P","P")
growth <- c(1,1,2,2,5,6,2,1)
model <- lmer(growth~density + fertilizer + (1|block))
Output:
Fixed effects:
Estimate Std. Error df t value Pr(>|t|)
(Intercept) 0.63351 0.06275 62.79670 10.096 8.92e-15 ***
densityHigh 0.12473 0.07502 85.99111 1.663 0.100
fertlizerP 0.01209 0.00602 76.42369 0.422 0.005 **
具体来说,我试图了解如何比较第一行和最后一行? 我的猜测
不清楚如何解释(3)
还是它:密度:低,肥料:N与密度:低,肥料:P
还是它:密度:低,肥料:N与密度:高,肥料:P
答案 0 :(得分:1)