Predict follow up time using parametric model in r
On 11/3/18 12:59 PM, Israel Ortiz wrote:
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?
I would imagine that the author thought that you should be able to rather simple construct a function that would return an estimate simply from the coefficients and the parametric equation for S(t). That was also what Harrell does in his "Regression? Modeling Strategies" text. In the first edition the code is on page 437.
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