add slot of failure time
implementing gradient of U
add test script
change the order of verbose and checking
Implement BSM ( not verified)
add a little description
bug fix if y has duplicated values
debug: D become logical
fit new definition of recurrent-data
debug of Z_i.hat
debug of generation of testing dataset
Implement the estimator of H0, formula(4) in Huang 2004
add more documentation
refactor, expose fi.hat for Huang 2004
declare needed functions
implement phi_3.gen
add roxygen of Z_i.hat
expose U.gen, Gamma.hat.gen
implement phi.gen, Sigma.hat.gen
finish prototype of beta.var.hat
debug:
1. handle 0/0 = 0
2. debug of n
enhance recurrentR:::Sigma.hat.gen