Initialization method for the "DualEndpointOld" class
# S4 method for DualEndpointOld
initialize(.Object, mu, Sigma, sigma2betaW, sigma2W,
rho, smooth = c("RW1", "RW2"), ...)either “RW1” (default) or “RW2”, for specifying the random walk prior on the biomarker level.
not used