fields exported FORTRAN {fields} | R Documentation |
FORTRAN subroutines used in fields functions
Description
These functions implement cubic smoothing splines and also provide some basic
computations for radial basis functions. All are called using the .FORTRAN
interface.
Details
For these low level FORTRAN subroutines refer to the R functions for the calling sequence and to the src subdirectory of the fields pacakage for the source code.
- css
Cubic smoothing spline see
sreg
andsplint
- ddfind
Finds nearest neighbor points within a fixed distance. See
fields.rdist.near
- dmaket
Creates matrix of all polynomial terms up to fixed order. See
fields.mkpoly
- evlpoly
evaluates a univariate polynomial. See codefields.evlpoly
- evlpoly2
evaluates a multivariate polynomial. See codefields.evlpoly2
- inpoly
Determine which 2-d locations are within a polynomial. see
in.poly
- igpoly
Determine which 2-d grid points locations are within a polynomial. see
in.poly.grid
- multeb
Multiply an exponential cross covariance matrix by another matrix. See
exp.cov
- multrb
Multiply an radial basis function matrix by another matrix. See
rad.cov
- radbas
Evaluates radial basis functions. See
rdist.R
- rcss
Robust cubic smoothing spline. See
qsreg