Random generator for cohort
I want to generate a random cohort in a model. The assumption is 40% start from state 1 and 60% in state 2. There are 4 states in all. I want to run a PSA such that cohorts also vary. I don't have a standard deviation to generate a distribution for the cohort. Please is there a way I can generate this in Treeage? I know RAND() in excel can do this, is there a similar way to do this in Treeage?