[R] Plot survival analysis with time dependent variables

[moleps]

Dear all,
Is there an implementation of Simon & Makuch method of plotting the survival function with time-dependent variables. I´m only able to find event.chart in Hmisc for the purpose and I would prefer the Simon and Makuch method. I believe stata has it implemented for this purpose, but I cannot find it on CRAN.


Simon R, Makuch RW. A non-parametric graphical representation of the relationship between survival and the occurrence of an event: application to responder versus non-responder bias.  Statistics in Medicine 1984; 3: 35-44. 

//M