如何在拟合
之后的离散生存函数后得到“平滑”基线危险的图表burr<- function(xi) {
linkfun <-function(mu) log(((1-mu)^(-xi)-1)/xi)
linkinv <- function(eta) 1-(1+xi*exp(eta))^(-1/xi)
mu.eta <- function(eta) exp(eta)*(1+xi*exp(eta))^(-1/xi-1)
valideta <- function(eta) TRUE
link <- "burr"
structure(list(linkfun = linkfun, linkinv = linkinv, mu.eta = mu.eta,
valideta = valideta, name = link), class = "link-gamlss") }
model00 <- gamlssNP(y ~ cs(FS$t,df=3)+v1+v2,
random=~1|id,family=BI(mu.link=burr(5)),
data=FS, K=1, mixture="gq", tol=0.5,
control = NP.control(EMcc=0.001, trace=FALSE),
g.control = gamlss.control(trace=FALSE))