https://github.com/cran/pracma
Tip revision: 03698027c2d84118bd0c53c4a9a5b5d23676f388 authored by HwB on 01 October 2012, 00:00:00 UTC
version 1.2.0
version 1.2.0
Tip revision: 0369802
interp2.R
##
## i n t e r p 2 . R Test suite
##
interp2 <- pracma::interp2
x <- c(0.0, 0.2, 0.4, 0.6, 0.8, 1.0)
y <- c(1, 2, 3)
Z <- matrix(c(
1, 1.04, 1.16, 1.36, 1.64, 2,
4, 4.04, 4.16, 4.36, 4.64, 5,
9, 9.04, 9.16, 9.36, 9.64, 10), nrow = 3, byrow = TRUE)
all.equal(interp2(x, y, Z, 0.55, 2.55, method = "constant"), 4.16)
all.equal(interp2(x, y, Z, 0.55, 2.55, method = "nearest"), 9.36)
all.equal(interp2(x, y, Z, 0.5, 2.5, method = "linear"), 6.76)
all.equal(interp2(x, y, Z, 0.55, 2.5, method = "linear"), 6.81)
all.equal(interp2(x, y, Z, 0.5, 2.55, method = "linear"), 7.01)
all.equal(interp2(x, y, Z, 0.55, 2.55, method = "linear"), 7.06)
all.equal(interp2(x, y, Z, 0.0, 1.5, method = "linear"), 2.5)
all.equal(interp2(x, y, Z, 0.1, 1.0, method = "linear"), 1.02)
all.equal(interp2(x, y, Z, 1.0, 2.5, method = "linear"), 7.5)
all.equal(interp2(x, y, Z, 0.9, 3.0, method = "linear"), 9.82)