krigtest {RGeostats}R Documentation

Operates the (co-)kriging of a single target

Description

Operates the (co-)kriging of a single target and returns all the relevant results as arguments

Usage

krigtest(dbin, dbout = NA, model = model.input(), neigh = neigh.input(), 
	 uc = c("1"), mean = NA, target = NA, iech0 = 1, 
	 flag.linked = FALSE, calcul = "point", xvalid = FALSE, ndisc = NA, 
	 cov.extract = NA, drift.extract = NA)

Arguments

dbin

The db-class structure containing the data file

dbout

The db-class structure containing the target file (optional). If this file is provided, the sample 'iech0' is processed. Otherwise, the target coordinates must be provided in argument 'target'.

model

The model-class structure containing the Model information

neigh

The neigh-class structure containing the Neighborhood information

uc

The drift description. Use command uc.names for details.

mean

Array containing the mean of each variable, used in the case of Simple (Co-)Kriging

target

If the output target file is not specified, the coordinates of the target sample are provided here.

iech0

Rank of the target sample in the 'dbout' file (if provided). Otherwise, this argument is not used.

flag.linked

When TRUE, the variables are sharing the same mean (or more generally the same drift). Otherwise, the variables have separate means (drifts).

calcul

Kriging option:

  • "point" : for ponctual estimation

  • "block" : for block average estimation

  • "drift" : for large scale drift estimation

xvalid

When ON, the Cross-validation neighborhood option is used: i.e. the sample that coincides with the target (if any) is discarded from the neighborhood

ndisc

Array giving the number of discretisation points in each direction of the space

cov.extract

List of the ranks of the only basic structures not to be filtered out

drift.extract

List of the ranks of the only drift functions not to be filtered out

Value

This procedure returns the following arguments:


[Package RGeostats version 11.0.6 Index]