Variowin

Software for Spatial Statistics. Analysis in 2D

  • Yvan Pannatier

Part of the Statistics and Computing book series (SCO)

Table of contents

  1. Front Matter
    Pages i-ix
  2. Yvan Pannatier
    Pages 1-6
  3. Yvan Pannatier
    Pages 7-23
  4. Yvan Pannatier
    Pages 46-60
  5. Yvan Pannatier
    Pages 61-72
  6. Back Matter
    Pages 73-91

About this book

Introduction

1.1 Overview V ARIOWIN 2.2 is a collection of four Windows™ programs - Prevar2D, Vari02D with PCF, Model, and Grid Display - that are used for spatial data analysis and variogram modeling of irregularly spaced data in two dimensions. Prevar2D builds a pair comparison file (PCF), that is, a binary file containing pairs of data sorted in terms of increasing distance. Pair comparison files can be built from subsets in order to reduce memory requirements. Vari02D with PCF is used for spatial data analysis of 2D data. It uses an ASCII data file and a binary pair comparison file produced by Prevar2D. Features implemented in Vari02D with PCF include: • the possibility to characterize the spatial continuity of one variable or the joined spatial continuity of two variables, • variogram surfaces for identifying directions of anisotropies, • directional variograms calculated along any direction, • several measures of spatial continuity. Not only the variogram but also the standardized variogram, the covariance, the correlogram, and the madogram are used to measure spatial continuity. • h-scatterplots to assess the meaning of these measures, • the identification and localization of pairs of data adversely affecting the measure of spatial continuity. Once identified, these pairs can be masked from the calculation interactively. • variogram clouds for identifying pairs of data values having the most influence on the measure of spatial continuity. Those pairs can also be located on the sample map.

Keywords

Random variable STATISTICA Variance best fit data analysis ergodicity random function statistics

Authors and affiliations

  • Yvan Pannatier
    • 1
  1. 1.Institute of MineralogyUniversity of LaussaneLausanneSwitzerland

Bibliographic information

  • DOI https://doi.org/10.1007/978-1-4612-2392-4
  • Copyright Information Springer-Verlag New York 1996
  • Publisher Name Springer, New York, NY
  • eBook Packages Springer Book Archive
  • Print ISBN 978-0-387-94679-5
  • Online ISBN 978-1-4612-2392-4
  • Series Print ISSN 1431-8784
  • About this book