Weighted Pivot Coordinates for Compositional Data and Their Application to Geochemical Mapping

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15110%2F17%3A73580483" target="_blank" >RIV/61989592:15110/17:73580483 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/17:73580483

Result on the web

<a href="https://link.springer.com/article/10.1007/s11004-017-9684-z" target="_blank" >https://link.springer.com/article/10.1007/s11004-017-9684-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11004-017-9684-z" target="_blank" >10.1007/s11004-017-9684-z</a>

Result language

angličtina

Original language name

Weighted Pivot Coordinates for Compositional Data and Their Application to Geochemical Mapping

Original language description

The log ratio methodology converts compositional data, such as concentrations of chemical elements in a rock, from their original Aitchison geometry to interpretable real orthonormal coordinates, thereby allowing meaningful statistical processing and visualization. However, it must be taken into account that the original concentrations can be flawed by detection limit or imprecision problems that can severely affect the resulting coordinates. This paper aims to construct such orthonormal log ratio coordinates, called weighted pivot coordinates, that capture the relevant relative information about an original component and treat the redundant information in a controlled manner. Theoretical developments are supported by a thorough simulation study. Weighted pivot coordinates are then applied to the geochemical mapping of catchment outlet sediments from the National Geochemical Survey of Australia illustrating their advantage over possible alternatives.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10103 - Statistics and probability

Project

<a href="/en/project/LO1304" target="_blank" >LO1304: Support of suistainability of the Institute of Molecular and Translational Medicine</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Mathematical Geosciences

ISSN

1874-8961

e-ISSN

—

Volume of the periodical

49

Issue of the periodical within the volume

6

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

18

Pages from-to

"797–814"

UT code for WoS article

000405827400006

EID of the result in the Scopus database

—