# NOT RUN {
showClass("listofkeyrings")
### Creation of a listofkeyrings object
K0 <- planor.designkey(factors=c(LETTERS[1:4], "block"), nlevels=rep(3,5),
model=~block+(A+B+C+D)^2, estimate=~A+B+C+D,
nunits=3^3, base=~A+B+C, max.sol=2)
show(K0)
# }
Run the code above in your browser using DataLab