Directions of 51 glacial striations, example data from Davis (1986), pp. 316
References
Davis, J.C. (1986) Statistics and Data Analysis in Geology. 2nd Edition, John Wiley & Sons, New York.
Examples
data("striae")
striae
#> [1] 23 27 53 58 64 83 85 88 93 99 100 105 113 113 114 117 121 123 125
#> [20] 126 126 126 127 127 128 128 129 132 132 132 134 135 137 144 145 145 146 153
#> [39] 155 155 155 157 163 165 171 172 179 181 186 190 212