Nothing
options(digits=12)
if(!require("BB"))stop("this test requires package BB.")
if(!require("setRNG"))stop("this test requires setRNG.")
# Use a preset seed so test values are reproducable.
test.rng <- list(kind="Wichmann-Hill", normal.kind="Box-Muller", seed=c(979,1479,1542))
old.seed <- setRNG(test.rng)
##########
cat("BB test dfsane ...\n")
expo1 <- function(x) {
n <- length(x)
f <- rep(NA, n)
f[1] <- exp(x[1] - 1) - 1
f[2:n] <- (2:n) * (exp(x[2:n] - 1) - x[2:n])
f
}
ans <- dfsane(par=runif(50), fn=expo1)
z <- sum(ans$par)
good <- 49.9963301148
print(z, digits=16)
if(any(abs(good - z) > 1e-9)) stop("BB test dfsane FAILED")
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