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A COMPUTER PROGRAM FOR GRAIN‐SIZE DATA 1
Author(s) -
SCHLEE JOHN,
WEBSTER JACQUELINE
Publication year - 1967
Publication title -
sedimentology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.494
H-Index - 108
eISSN - 1365-3091
pISSN - 0037-0746
DOI - 10.1111/j.1365-3091.1967.tb01305.x
Subject(s) - kurtosis , interpolation (computer graphics) , skewness , series (stratigraphy) , computer program , geology , moment (physics) , grain size , statistics , mathematics , computer science , geomorphology , physics , computer graphics (images) , paleontology , animation , classical mechanics , operating system
SUMMARY The computer program presented here seeks to improve estimation of statistical parameters for grain‐size data by use of interpolated values. Interpolation is made by fitting a series of overlapping parabolas to the data, and follows the method of S nyder (1961). The values are used in moment formulas to compute standard statistical measures. Skewness and kurtosis are reduced by the interpolation data, and extreme positive values of kurtosis tend to be greatly reduced. The program also picks major modes, the median, and sediment type.