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CompRandFld (version 1.0.3-5)

Composite-Likelihood Based Analysis of Random Fields

Description

A set of procedures for the analysis of Random Fields using likelihood and non-standard likelihood methods is provided. Spatial analysis often involves dealing with large dataset. Therefore even simple studies may be too computationally demanding. Composite likelihood inference is emerging as a useful tool for mitigating such computational problems. This methodology shows satisfactory results when compared with other techniques such as the tapering method. Moreover, composite likelihood (and related quantities) have some useful properties similar to those of the standard likelihood.

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Version

Install

install.packages('CompRandFld')

Monthly Downloads

215

Version

1.0.3-5

License

GPL (>= 2)

Maintainer

Last Published

June 8th, 2018

Functions in CompRandFld (1.0.3-5)

Covariogram

Computes covariance, variogram and extremal coefficient functions
CheckModel

Checking Random Field type
Covmatrix

Spatio-temporal (tapered) Covariance Matrix
NuisanceParam

Lists the Nuisance Parameters of a Random Field
usrain

Annual Maximum Rainfalls in U.S.
FitGev

Max-likelihood Fitting of the GEV Distribution
InitParam

Initializes the Parameters for Estimation Procedures
GevLogLik

Log-Likelihood of the GEV Distribution
RFsim

Simulation of Gaussian, Binary and Max-stable Random Fields
winds.coords

Weather Stations of the Irish Daily Wind Speeds
MomEst

Estimation of the GEV parameters by the Method of Moments
us.coords

Gauging Stations of the Annual Maximum Rainfalls in U.S.
HypoTest

Statistical Hypothesis Tests for Nested Models
winds

Irish Daily Wind Speeds
Likelihood

Optimizes the Log Likelihood
Kri

Spatial and spatio temporal simple and ordinary (tapered) kriging
CompLikelihood

Optimizes the Composite log-likelihood
CheckLikelihood

Checking Composite-likelihood Type
CheckInput

Checking Input
CheckVarType

Checking Variance Estimates Type
CorrelationParam

Lists the Parameters of a Correlation Model
CheckCorrModel

Checking Correlation Model
CheckType

Checking Likelihood Objects
Dist2Dist

Switches from an EV to Another EV Distribution
EVariogram

Empirical Variogram(variants) of Gaussian, Binary and Max-Stable Fields
WlsInit

Computes Starting Values based on Weighted Least Squares
WLeastSquare

WLS of Gaussian and Max-Stable Random Fields
FitComposite

Max-Likelihood-Based Fitting of Gaussian, Binary and Max-Stable Fields