training {geostats}

composition of 646 oceanic basalts

Description

Major element compositions of 227 island arc basalts (IAB), 221 mid oceanic ridge basalts (MORB) and 198 ocean island basalts (OIB). This dataset can be used to train supervised learning algorithms.

References

Vermeesch, P. “Tectonic discrimination diagrams revisited.” Geochemistry, Geophysics, Geosystems 7.6 (2006).

Examples

library(MASS)
data(training,package='geostats')
ld <- lda(x=alr(training[,-1]),grouping=training[,1])
pr <- predict(ld)
table(training$affinity,pr$class)