https://github.com/cran/fields
Tip revision: c8904131c3352e1d3ff03bb5c07f5434648cc406 authored by Doug Nychka on 17 November 2011, 11:25:44 UTC
version 6.6.2
version 6.6.2
Tip revision: c890413
evlpoly.R
# fields, Tools for spatial data
# Copyright 2004-2011, Institute for Mathematics Applied Geosciences
# University Corporation for Atmospheric Research
# Licensed under the GPL -- www.gpl.org/licenses/gpl.html
fields.evlpoly <- function(x, coef) {
# evaluates polynomial at x values with coefficients coef[i] and powers i-1
#
n <- length(x)
J <- length(coef)
results <- rep(0, n)
temp <- .Fortran("evlpoly", x = as.double(x), n = as.integer(n),
coef = as.double(coef), j = as.integer(J), results = as.double(results)
)$results
return(temp)
}