Dear All,
I have to apply the conditional risk set model (time from the previous event)
explained in the FAQ by Mario Cleves. Unfortunately, I do not know how to
(st)set by dataset in order to generate as origin a  variable "time from
the previous event". I need to transform my dataset from:
Country _t0 _t1 Event
  1           0    1    0
  1            1   2    1
   1          2    3    0
   1          3    4    1
   1          4    5    0
in
Country  _t0   _t1 Event
1              0     1     0
1              1     2      1
1              0     1      0
1              1     2      1
1              0     1      0
Please do you have any suggestion?
Thanks
Giorgio
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