A data frame for a small subset of data from a regional geochemical stream sediment survey undertaken by the Norwegian Geological Survey.
A data frame with 25 observations on the following 9 variables:
an arbitrary ID (numeric vector).
an Eastings coordinate.
a Northings coordinate.
zinc (mg/kg) in stream sediment.
iron (%) in stream sediment.
manganese (mg/kg) in stream sediment.
cadmium (mg/kg) in stream sediment.
copper (mg/kg) in stream sediment.
lead (mg/kg) in stream sediment.
These data were used by Howarth and Sinding-Larsen (1983) to demonstrate the use of a number of multivariate statistical analysis techniques. Other authors, e.g., Howarth and Garrett (1986) and Garrett and Grunsky (2001) have also used the data set for demonstration purposes.
Howarth and Sinding-Larson (1983), see below. Spatial coordinates added by digitizing Fig. 6-1 (op. cit.).
Howarth, R.J. and Sinding-Larsen, R., 1983. Multivariate analysis. Chapter 6 of Handbook of Exploration Geochemistry, Vol. 2, Statistics and Data Analysis in Geochemical Prospecting (Ed. R.J. Howarth), Elsevier, pp. 207-289.
Howarth, R.J. and Garrett, R.G., 1986. The role of computing in applied geochemistry. In Applied Geochemistry in the 1980s (Eds. I. Thornton and R.J. Howarth), Graham and Trotman, London, pp. 163-184.
Garrett, R.G. and Grunsky, E.G., 2001. Weighted Sums - Knowledge based empirical indices for use in exploration geochemistry. Geochemistry: Exploration, Environment and Analysis, 1(2):135-141.
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