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Computational Ecology and Software, 2014, 4(1): 22-34
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Article

An online calculator for spatial data and its applications

Kalle Remm, Tiiu Kelviste
Institute of Ecology and Earth Sciences, University of Tartu. 46 Vanemuise St., 51014 Tartu, Estonia

Received 6 December 2013;Accepted 10 January 2014;Published online 1 March 2014
IAEES

Abstract
An online calculator (http://digiarhiiv.ut.ee/kalkulaator/) for statistical analysis of spatial data is introduced. The calculator is applicable in a wide range of spatial research and for courses involving spatial data analysis. The present version of the calculator contains 35 web pages for statistical functions with several options and settings. The input data for most functions are pure Cartesian coordinates and variable values, which should be copied to the input cell on the page of a particular spatial operation. The source code for the computational part of all functions is freely available in C# programming language. Examples are given for thinning spatially dense observation points to a predefined minimum distance, for calculating spatial autocorrelations, for creating habitat suitability maps and for generalising movement data into spatio-temporal clusters.

Keywords spatial statistics;online tool;habitat suitability;autocorrelation;spatio-temporal clustering.



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