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Contains a hydrochemical amount/compositional data set obtained from several rivers in the Llobregat river basin, in northeastern Spain.
data(Hydrochem)
Data matrix with 485 cases and 19 variables.
Raimon Tolosana-Delgado
This hydrochemical data set contains measurements of 14 components, H,
Na, K, Ca, Mg, Sr, Ba,
The Llobregat river drains an area of 4948.2
Otero, N.; R. Tolosana-Delgado, A. Soler, V. Pawlowsky-Glahn and A. Canals (2005). Relative vs. absolute statistical analysis of compositions: A comparative study of surface waters of a Mediterranean river. Water Research, 39(7): 1404-1414. tools:::Rd_expr_doi("10.1016/j.watres.2005.01.012").
Tolosana-Delgado, R.; Otero, N.; Pawlowsky-Glahn, V.; Soler, A. (2005). Latent Compositional Factors in The Llobregat River Basin (Spain) Hydrogeochemistry. Mathematical Geology 37(7): 681-702.
data(Hydrochem)
cHydrochem=Hydrochem[, 6:19]
biplot(princomp(rplus(cHydrochem)))
biplot(princomp(rcomp(cHydrochem)))
biplot(princomp(aplus(cHydrochem)))
biplot(princomp(acomp(cHydrochem)))
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