[R] demo(nlm) error under R 0.99.0

brian.o'gorman@noaa.gov brian.o'gorman at noaa.gov
Tue Feb 8 00:11:31 CET 2000


I can't seem to get the demo(nlm) to run under  R version 0.99.0
Anyone know a solution?


> fgh <- function(x) {
    gr <- function(x1, x2) {
        c(-400 * x1 * (x2 - x1 * x1) - 2 * (1 - x1), 200 * (x2 -
            x1 * x1))
    }
    h <- function(x1, x2) {
        a11 <- 2 - 400 * (x2 - x1 * x1) + 800 * x1 * x1
        a21 <- -400 *  .... [TRUNCATED]

> nlm(fgh, c(-1.2, 1), hessian = TRUE)
Segmentation fault (core dumped)


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