[R] Predict follow up time using parametric model in r

[Israel Ortiz]

I am trying to predict follow-up time using several survival models, both
parametric and semi-parametric. I achieve it for semi parametric models
using predict.coxph function in R from survival package using type =
"expected" as indicated in help. However, for parametric models, this
option doesn't exist for the predict.survreg function. Is there any other
option? Maybe using rms package?

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