Main estimation function — ssfit • SSIndex

Fits general rate model. The formula takes `reSurv` from `reReg`.

ssfit(
  formula,
  data,
  shp.ind = FALSE,
  bIni = NULL,
  rIni = NULL,
  optMethod = NULL,
  smoothFirst = NULL,
  interval = c(0, 2 * pi),
  h = NULL,
  weights = NULL
)

Arguments

formula	a formula object, with the response on the left of a '~' operator.
data	an optional argument for data.
shp.ind	a character string indicating either to proceed with shape independence assumption.
bIni	initial value for estimating beta
rIni	initial value for estimating gamma
smoothFirst	estimate the smooth estimator first and use it to guide? Default: FALSE when p = 1, TRUE when p > 1
opt	how many optimization methods to try? 1: optim 2: 1 + spg Default: 1 when p = 1, 2 when p > 1