B.8 Orientations of pebbles
Horizontal axes of 100 outwash pebbles fromo a late Wisconsin outwash terrace alogn Fox river, near Cary, Illinois
data(fisherB8) data(fisherB8c)
fisherB8 a vector of 100 observations (in degrees).
fisherB8c contains the same observations in a circular objects.
Mardia, K.V. (1972) Statistics of Directional Data. London: Academic Press. Table 1.6 adapted from Krumbein W.C. (1939) Preferred orientations of pebbles in sedimentary deposits. J. Geol. 47, 673-706.
N.I. Fisher (1993) Statistical analysis of circular data. Cambridge University Press. Pag. 243.
data(fisherB8c) plot(fisherB8c, stack=TRUE, shrink=1.5)
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