anam-class {RGeostats} | R Documentation |
This Class contains the anamorphosis which describes the way samples can be transformed from raw (Y) to gaussian (Z) scale, and vice-versa
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).
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
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
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
showClass("anam")