nutterb
Empty set error for "random" when using the allocationTable function
Hi! I'm trying to create an allocation table with the following code, taken from this Wiki page:
Randomize <- allocationTable(rcon, random="Randomization",
strata=NULL,
dag.id=c("[X]", "[Y]"),
replicates=200,
block.size=c(8, 4, 2),
block.size.shift = c(0, .48, .9),
seed.dev=205, seed.prod=1510,
bundle=proj)
No matter what I do with "random" (leave it blank, put random=NULL, or what I did above, which is to put the field name of the variable we want randomized), I get the following error:
Error in allocationTable(rcon, random = "Randomization", strata = NULL, dag.id = c("[X]", : 1 assertions failed:
- Variable 'random': Must be a subset of the empty set, i.e. also empty.
Could someone explain to me (in simple terms, please, I'm not a mathematician or coder) what this means and how to fix it? Thanks!
