Description Usage Arguments Value Author(s) Examples
Generates a benchmark function with multiple peaks.
1 | peaks(x)
|
x |
A matrix containing the values of the input variables. |
Vector of the same length as x
giving the values of the benchmark function.
Laura Villanova, Kate Smith-Miles and Rob J Hyndman
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | x1 <- seq(-3, 3, length = 50)
x2 <- x1
x<-expand.grid(x1, x2)
z <- matrix(peaks(x), nrow = length(x1))
nrz <- nrow(z)
ncz <- ncol(z)
jet.colors <- colorRampPalette( c("red", "yellow") )
nbcol <- 100
color <- jet.colors(nbcol)
zfacet <- z[-1, -1] + z[-1, -ncz] + z[-nrz, -1] + z[-nrz, -ncz]
facetcol <- cut(zfacet, nbcol)
persp(x1, x2, z, col = color[facetcol], theta = 0, phi = 10,
expand = 1, xlab = "x1", ylab = "x2", zlab = "f(x1, x2)",
ticktype = "detailed")
|
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.