foraminiferals {coda.base}

Paleocological compositions

Description

The foraminiferal data set (Aitchison, 1986) is a typical example of paleocological data. It contains compositions of 4 different fossils (Neogloboquadrina atlantica, Neogloboquadrina pachyderma, Globorotalia obesa, and Globigerinoides triloba) at 30 different depths. Due to the rounded zeros present in the data set we will apply some zero replacement techniques to impute these values in advance. After data preprocessing, the analysis that should be undertaken is the association between the composition and the depth.

Usage

foraminiferals

Format

An object of class data.frame with 30 rows and 5 columns.