

####### For simulation

##SM18-AK242_sumulation1 SM18-AK242_sumulation2 SM18-AK242_sumulation3

##are the simulation code for the Table 1, Table 2, and  Table 3,respectively.

##Change the values of r1 and r2, one can obtain different transformation functions.

####### For real data analysis

##SM18-AK242_realdata1 SM18-AK242_realdata2

##are the real data code for the normal frailty and gamma frailty, respectively.

##One shoud first put the real data into the work Directory of R (say file "wd" under D disk in our code).