anam-class {RGeostats}

R Documentation

Class "anam" Gaussian Anamorphosis

Description

This Class contains the anamorphosis which describes the way samples can be transformed from raw (Y) to gaussian (Z) scale, and vice-versa

Objects from the Class

Objects can be created by calls of the form new("anam", ...). The anamorphosis function enables the user to turn from raw to gaussian (and vice versa).

Slots

type:

Method for calculating the Gaussian Anamorphosis

pymin:

Object of class "numeric" Minimum practical value for Y

pzmin:

Object of class "numeric" Minimum practical value for Z

pymax:

Object of class "numeric" Maximum practical value for Y

pzmax:

Object of class "numeric" Maximum practical value for Z

aymin:

Object of class "numeric" Minimum absolute value for Y

azmin:

Object of class "numeric" Minimum absolute value for Z

aymax:

Object of class "numeric" Maximum absolute value for Y

azmax:

Object of class "numeric" Maximum absolute value for Z

mean:

Object of class "numeric" Mean of the data

variance:

Object of class "numeric" Variance of the data

r:

Change of support coefficient

s:

Change of support coefficient (for Discrete Diffusion case)

hermite:

Object of class "numeric" Coefficients of the Hermite polynomials

nbpoly:

Object of class "numeric" Number of Hermite polynomials

ndisc:

Number of steps for discretizing the scale of raw values (used in the empirical case)

sigma2e:

Additional variance for the lognormal distribution

tdisc:

Discretization array (used in the empirical case)

zcut:

Array of cutoffs for discrete anamorphosis

mu:

Auximilary coefficient used for the Change of Support in the case of Discrete Anamorphosis

maf:

The pca-class defining the MAF decomposition used for the Discrete Anamorphosis

stats:

Array providing the statistics vectors used for Discrete Anamorphosis

Methods

[<-

anam[i]<-value assigns value to the coefficient of the i-th Hermite polynomial of the anam Class.

[

anam[i] returns the coefficient of the i-th Hermite polynomial of the anam Class.

\$

anam$parameter is used to query the value of parameter from anam:

• pymin : Minimum practical value for Y

• pymax : Maximum practical value for Y

• pzmin : Minimum practical value for Z

• pzmax : Maximum practical value for Z

• aymin : Minimum absolute value for Y

• aymax : Maximum absolute value for Y

• azmin : Minimum absolute value for Z

• azmax : Maximum absolute value for Z

• nbpoly : Number of Hermite polynomials

• hermite : Array of Hermite coefficients

• variance : Variance of the variable

\$<-

Same as the previous method but for assignment

show

anam.print

print

anam.print

plot

anam.plot

See Also

Other functions are available, such as:

• anam.fit Fit the gaussian anamorphosis from a variable in a db-class to create a anam-class

• anam.y2z Transform a Gaussian variable into a Raw variable

• anam.z2y Transform a Raw variable into a Gaussian variable

Examples

showClass("anam")

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