Parametric Survival Models - Princeton University
k(x) is the incomplete gamma function, de ned as I k(x) = Z x 0 k 1e xdx=( k): There is no closed-form expression for the survival function, but there are excellent algorithms for its computation. (R has a function called pgamma that computes the cdf and survivor function. This function calls kthe shape parameter and 1= the scale parameter.)
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Non-Parametric Estimation in Survival Models Germ´an Rodr´ıguez email@example.com Spring, 2001; revised Spring 2005 We now discuss the analysis of survival data without parametric assump-
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