simplex problem (PR#2317)

Full_Name: George F. LeCompte
Version: 1.6.1
OS: Windows 98
Submission from: (NULL) (208.8.162.161)


This may be a newbie problem.  I am attempting tor unt the simplex routine from
the boot package.  The example code doesn't find simplex.  What's wrong here?

help(simplex,package=boot)
# from the resulting article

     #  This example is taken from Exercise 7.5 of Gill, Murray,
     #  and Wright (1991).
     enj <- c(200, 6000, 3000, -200)
     fat <- c(800, 6000, 1000, 400)
     vitx <- c(50, 3, 150, 100)
     vity <- c(10, 10, 75, 100)
     vitz <- c(150, 35, 75, 5)
     simplex(a=enj, A1=fat, b1=13800, A2=rbind(vitx, vity, vitz),

+              b2=c(600, 300, 550), maxi=TRUE)
Error: couldn't find function "simplex"