Spatial relationships between two georeferenced variables: With applications in R

Ronny Vallejos, Felipe Osorio, Moreno Bevilacqua

Research output: Book/ReportBookpeer-review

55 Scopus citations

Abstract

This book offers essential, systematic information on the assessment of the spatial association between two processes from a statistical standpoint. Divided into eight chapters, the book begins with preliminary concepts, mainly concerning spatial statistics. The following seven chapters focus on the methodologies needed to assess the correlation between two or more processes; from theory introduced 35 years ago, to techniques that have only recently been published. Furthermore, each chapter contains a section on R computations to explore how the methodology works with real data. References and a list of exercises are included at the end of each chapter. The assessment of the correlation between two spatial processes has been tackled from several different perspectives in a variety of applications fields. In particular, the problem of testing for the existence of spatial association between two georeferenced variables is relevant for posterior modeling and inference. One evident application in this context is the quantification of the spatial correlation between two images (processes defined on a rectangular grid in a two-dimensional space). From a statistical perspective, this problem can be handled via hypothesis testing, or by using extensions of the correlation coefficient. In an image-processing framework, these extensions can also be used to define similarity indices between images.

Original languageEnglish
PublisherSpringer International Publishing
Number of pages194
ISBN (Electronic)9783030566814
ISBN (Print)9783030566807
DOIs
StatePublished - 22 Sep 2020
Externally publishedYes

Keywords

  • Codispersion map
  • Coefficients of Spatial Association
  • Cross-variogram
  • Georeferenced variables
  • Image similarity
  • Image similarity
  • Maximum likelihood
  • Multivariate hypothesis testing
  • Parametric Testing
  • Quantitative geology
  • R applications
  • Relationships between variables
  • SSIM index
  • Spatial AR process
  • Spatial Processes
  • Spatial autocorrelation
  • Spatial correlation
  • Spatial process
  • T-test

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