Open AccessDifferent approximation for regionalized variables
Author(s) -
G. J. Van Tonder,
J. F. Botha
Publication year - 1985
Publication title -
suid-afrikaanse tydskrif vir natuurwetenskap en tegnologie/die suid-afrikaanse tydskrif vir natuurwetenskap en tegnologie
Language(s) - English
Resource type - Journals
eISSN - 2222-4173
pISSN - 0254-3486
DOI - 10.4102/satnt.v4i2.1027
Subject(s) - kriging , variable (mathematics) , function (biology) , mathematics , simple (philosophy) , variables , least squares function approximation , statistics , mathematical analysis , philosophy , epistemology , evolutionary biology , biology , estimator
A regionalized variable is any numerical function with a spatial distribution which varies from one place to another with apparent continuity. Least squares, distance weighted averaging and kriging can be used to approximate these regionalized variables, this paper presents an overview of these methods and shows how Chebychev polynomials are used in conjunction with simple kriging for the approximation of regionalized variables