Interactions between 2 categorical variables (factors)

[mspinola]

Dear list members,

How do I set up the interaction between 2 categorical variables (factors) in PRESENCE?
Thank you very much in advance.
Best,

Manuel Spínola

[Indermaur]

hi,
you have to calculate it beforehand e.g. in excel (A*B=C), and then paste the column C in presence.
cheers,
lukas