Anova F test plot — ggaov • gginference

Visualise anova F-test to determine whether group means are equal

ggaov(t, alpha=0.05, colaccept="lightsteelblue1",
colreject="grey84", colstat="navyblue")

Arguments

t	an object of class aov
alpha	alpha level for finding critical F value
colaccept	color for the acceptance region of the test
colreject	color for the area of rejection of the test
colstat	color of the statistic of the test line

Examples

# 21-th day
chick21 <- ChickWeight[ChickWeight$Time == 21,]
chickaov <- aov(weight~Diet, data = chick21)
summary(chickaov)
#>             Df Sum Sq Mean Sq F value  Pr(>F)   
#> Diet         3  57164   19055   4.655 0.00686 **
#> Residuals   41 167839    4094                   
#> ---
#> Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

ggaov(chickaov, colaccept = "grey89", colreject = "black")