Double condition (if)
Hello, I have a data set with two randomization (code 1 or 2) arm and 5 types (1,2...,5) of interventions and my interest variable is a scale pain (1,... to 10). How can I make a khi2 test analysis between the two arm and my scale pain for 1 of the five intervention. I create a new variable "Chir Abdo - Rando" with formula to make analysis X,Y "Chir Abdo - Rando" in function "EVA <4". For example...