Qsearch.Fractil: Calculate the survival time to a selected quantile
In newTestSurvRec: Statistical Tests to Compare Curves with Recurrent Events

Description Usage Arguments Value Author(s) References See Also Examples

Auxiliary function called from Dif.Surv.Rec function. Given a FitSurvRec object we obtain the quantile from a survival function using PHS o WC estimators.

1	Qsearch.Fractil(fr, qr = 0.5)

`fr`	FitSurvRec object
`qr`	quantile. Default is 0.5

Returns the time in a selected quantile

Dr. Carlos M Martinez M., <cmmm7031@gmail.com>

Martinez C., Ramirez, G., Vasquez M. (2009). Pruebas no parametricas para comparar curvas de supervivencia de dos grupos que experimentan eventos recurrentes. Propuestas. Revista Ingenieria U.C.,Vol 16, 3, 45-55.// Martinez, C. (2009). Generalizacion de algunas pruebas clasicas de comparacion de curvas de supervivencia al caso de eventos de naturaleza recurrente. Tesis doctoral. Universidad Central de Venezuela (UCV). Caracas-Venezuela.

FitSurvRe, Survrecu, is.Survrecu

XL<-data(MMC.TestSurvRec)
fit<-FitSurvRec(Survrecu(id,time,event)~1,data=MMC.TestSurvRec)
# 35th percentile from the survival function
Qsearch.Fractil(fit,q=0.35)