Draw random samples from a generalized gamma distribution using the
parameterization from flexsurv. Written in C++
for speed. Equivalent to flexsurv::rgengamma.
fast_rgengamma(n, mu = 0, sigma = 1, Q)A vector of random samples from the generalized gamma distribution. The length of the sample is determined by n. The numerical arguments other than n are recycled so that the number of samples is equal to n.
Number of random observations to draw.
Vector of location parameters. and columns correspond to rates during specified time intervals.
Vector of scale parameters as described in flexsurv.
Vector of shape parameters.
n <- 1000
m <- 2 ; s <- 1.7; q <- 1
ptm <- proc.time()
r1 <- fast_rgengamma(n, mu = m, sigma = s, Q = q)
proc.time() - ptm
ptm <- proc.time()
library("flexsurv")
r2 <- flexsurv::rgengamma(n, mu = m, sigma = s, Q = q)
proc.time() - ptm
summary(r1)
summary(r2)
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