corModel: Corelation model

In martindurocher/floodRFA: A R-package for regional frequency of floods

Description

Returns a vector or matrix of the correlation associated to a given spatial correlation model.

Usage

corModel(p, ...)

## S3 method for class 'numeric'
corModel(p, h, type = "exp")

Arguments

p	Vector of row matrix of the model parameters. If it is a matrix, each row is set parameter.
h	Vector or matrix of the distance.
type	Correlation model

Details

The correlation model are Strings. The available model are: exponential (exp), gaussian (gau), rational quadratic (rqd), spherical (sph), circular (cir), power exponential (pow) and matern (mat).

Examples

coord <- replicate(2,runif(30))
h <- as.matrix(dist(coord))

Sexp <- corModel(c(.6,0), h,'exp')
Srq <- corModel(c(.3,.2), h,'rqd')
Smat <- corModel(c(.6,.1, 50), h,'mat')

plot(as.vector(h),as.vector(Sexp))
points(as.vector(h),as.vector(Srq),col = 2)
points(as.vector(h),as.vector(Smat),col = 4)

martindurocher/floodRFA documentation built on June 5, 2019, 8:44 p.m.