SAHARA: A package of PC computer programs for estimating both log-hyperbolic grain-size parameters and standard moments

Christian Christiansen, Daniel Hartmann

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

This paper documents a package of menu-driven POLYPASCAL87 computer programs for handling grouped observations data from both sieving (increment data) and settling tube procedures (cumulative data). The package is designed deliberately for use on IBM-compatible personal computers. Two of the programs solve the numerical problem of determining the estimates of the four (main) parameters of the log-hyperbolic distribution and their derivatives. The package also contains a program for determining the mean, sorting, skewness. and kurtosis according to the standard moments. Moreover, the package contains procedures for smoothing and grouping of settling tube data. A graphic part of the package plots the data in a log-log plot together with the estimated log-hyperbolic curve. Along with the plot follows all estimated parameters. Another graphic option is a plot of the log-hyperbolic shape triangle with the (χ,ζ) position of the sample.

Original languageEnglish
Pages (from-to)557-625
Number of pages69
JournalComputers and Geosciences
Volume14
Issue number5
DOIs
StatePublished - 1 Jan 1988

Keywords

  • Automated data processing
  • Log-hyperbolic distribution
  • Log-hyperbolic parameters
  • Log-hyperbolic shape triangle
  • Moments
  • Sieving and settling-tube data

ASJC Scopus subject areas

  • Information Systems
  • Computers in Earth Sciences

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