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CompRandFld (version 1.0.3-6)

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. Adapts the methodologies derived in Padoan and Bevilacqua (2015) , Padoan et al. (2010) , Davison et al. (2012) , Bevilacqua et al. (2012) . It also refers to the works of Bevilacqua et al. (2010) , Bevilacqua and Gaetan (2013) , Cooley et al. (2006) , Cressie (1993) , Gaetan and Guyon (2010) , Gneiting (2002) , Gneiting et al. (2007) , Heagerty and Zeger (1998) , Harville (1977) , Kaufman et al. (2008) , Shaby and Ruppert (2012) , Varin and Vidoni (2005) , Patrick et al. , de Haan and Pereira (2006) , Kabluchko (2010) , Kabluchko et al. (2009) , Schlather (2002) , Carlstein (1986) , Heagerty and Lumley (2000) , Lee and Lahiri (2002) , Li et al. (2007) , de Haan and Ferreira (2006) Smith (1987) , Chandler and Bate (2007) , Rotnitzky and Jewell (1990) .

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Version

Install

install.packages('CompRandFld')

Monthly Downloads

94

Version

1.0.3-6

License

GPL (>= 2)

Maintainer

Simone Padoan

Last Published

January 10th, 2020

Functions in CompRandFld (1.0.3-6)

CheckInput

Checking Input
CheckLikelihood

Checking Composite-likelihood Type
CorrelationParam

Lists the Parameters of a Correlation Model
CheckType

Checking Likelihood Objects
CheckModel

Checking Random Field type
CompLikelihood

Optimizes the Composite log-likelihood
CheckVarType

Checking Variance Estimates Type
Covariogram

Computes covariance, variogram and extremal coefficient functions
CheckCorrModel

Checking Correlation Model
Covmatrix

Spatio-temporal (tapered) Covariance Matrix
winds

Irish Daily Wind Speeds
Kri

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

Empirical Variogram(variants) of Gaussian, Binary and Max-Stable Fields
Dist2Dist

Switches from an EV to Another EV Distribution
FitComposite

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

Max-likelihood Fitting of the GEV Distribution
winds.coords

Weather Stations of the Irish Daily Wind Speeds
InitParam

Initializes the Parameters for Estimation Procedures
RFsim

Simulation of Gaussian, Binary and Max-stable Random Fields
NuisanceParam

Lists the Nuisance Parameters of a Random Field
WLeastSquare

WLS of Gaussian and Max-Stable Random Fields
WlsInit

Computes Starting Values based on Weighted Least Squares
usrain

Annual Maximum Rainfalls in U.S.
GevLogLik

Log-Likelihood of the GEV Distribution
Likelihood

Optimizes the Log Likelihood
MomEst

Estimation of the GEV parameters by the Method of Moments
HypoTest

Statistical Hypothesis Tests for Nested Models
us.coords

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