Abstract
Based on the methods of Fisher and Watson,Fortran iv computer programs are presented for the following analyses of directional observations on the sphere: (1) to determine if points are randomly distributed; (2) to estimate the azimuth and inclination of the center (mean direction) of a cluster and to estimate the precision (closeness) with which points are clustered; (3) to determine if two or more clusters have the same mean direction; (4) to determine if two clusters have the same precision of clustering; and (5) to locate the pole of a greatcircle girdle of points. Limitations of these analyses for undirected directional observations on the hemisphere also are given.
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Schuenemeyer, J.H., Koch, G.S. & Link, R.F. Computer program to analyze directional data, based on the methods of Fisher and Watson. Mathematical Geology 4, 177–202 (1972). https://doi.org/10.1007/BF02311717
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DOI: https://doi.org/10.1007/BF02311717