R: Estimation of proportions

spde.proportions {RGeostats}

R Documentation

Estimation of proportions

Description

Estimation of proportions

Usage

spde.proportions(db, dbout, seismic = NA, mesh, model, nostat = NA, 
								rank.data.facies, rank.seis.prop, rank.seis.dval, 
								splits = NA, props = NA,
								flag.precond = TRUE, verbose = FALSE, 
								maxiter = 20, eps = 5e-04, cgmaxiter = 100, cgeps = 1e-06, 
								chebncmax = 10001, chebtol = 0.005)

Arguments

`db`	The `db-class` containing the facies information.
`dbout`	The `db-class`, organized as a grid, and which will contain the proportions estimated for each facies.
`seismic`	The `db-class`, organized as a grid, which gives the constraints induced by the seismic information. The space dimension of the 'seismic' grid file must be smaller than the space dimension of the 'dbout' grid (by one).
`mesh`	A `mesh-class` object.
`model`	The `model-class` which gives the spatial characterization of the proportion (through the underlying Gaussian Random Function which represents the threshold).
`nostat`	List of non-stationary parameters. For details see `model.param.define`.
`rank.data.facies`	The rank of the variable which corresponds to the Facies
`rank.seis.prop`	The rank of the variable corresponding to the Proportion
`rank.seis.dval`	The rank of the variable corresponding to the Seismic variance
`splits`	Array describing how the facies are subdivided by dichotomy
`props`	Array giving the global proportions for the different facies. If not provided, these values elaborated from the data.
`flag.precond`	When TRUE, the pre-conditionner is called
`verbose`	Verbose option.
`maxiter`	Maximum number of iterations of the minimization function
`eps`	Tolerance of the minimization function
`cgmaxiter`	Maximum number of iterations of the internal Conjugate Gradient algorithm
`cgeps`	Tolerance of the internal Conjugate Gradient algorithm.
`chebncmax`	Maximum number of Chebychev polynomials.
`chebtol`	Tolerance used for determining the number of usefull Chebychev polynomials.

Value

The db-class, corresponding to the argument 'dbout', and which contains the resulting proportions.

[Package RGeostats version 14.0.10 Index]