Two-way ANOVA 'error'
I am trying to run a two-way ANOVA (unbalanced) with two main effects: Effect A has 7 levels (6 + control); Effect B has 4 levels (3+control). When I run a full factorial, JMP 'ignores' the controls or I get that 'Lost DFs' in the ANOVA table and no results. What is going ON? It has something to do with the controls...