https://github.com/cran/fields
Tip revision: 6769ffc81115fbf0bf7d9c566cf7ac81be0049dc authored by Doug Nychka on 25 July 2005, 00:00:00 UTC
version 3.04
version 3.04
Tip revision: 6769ffc
rdist.r
"rdist" <-
function (x1, x2)
{
if (!is.matrix(x1))
x1 <- as.matrix(x1)
if( missing( x2)) x2<- x1
if (!is.matrix(x2))
x2 <- as.matrix(x2)
d <- ncol(x1)
n1 <- nrow(x1)
n2 <- nrow(x2)
par <- c(1/2, 0)
matrix((.Fortran("radbas", nd = as.integer(d), x1 = as.double(x1),
n1 = as.integer(n1), x2 = as.double(x2), n2 = as.integer(n2),
par = as.double(par), k = as.double(rep(0, n1 * n2)),PACKAGE="fields")$k),
ncol = n2, nrow = n1)
}