I am doing a 2x2 independent measures ANOVA on trimmed means. I am using the WRS package to perform this robust ANOVA in R. I have two independent variables with two levels each. They split participants into four groups. These groups are not the same size. When I run tway(2,2,data) In R I get this error message:
Error in `[[<-.data.frame`(`*tmp*`, grp[i], value = c(9, 9, 6, 10, 9, : replacement has 8 rows, data has 11
I think this is because the groups are not the same size.