flexsurvreg model fit
to an existing plot. Equivalent to plot.flexsurvreg(...,add=TRUE).
## S3 method for class 'flexsurvreg':
lines(x, X=NULL,
col.fit="red", lty.fit=1, lwd.fit=2,...)flexsurvreg, representing a fitted
survival model object.plot.flexsurvreg.flexsurvreg