glass: glass vessels data

Description Usage Format Details Source References Examples

Description

13 different measurements for 180 archaeological glass vessels from different groups are included.

Usage

1

Format

A data matrix with 180 objects and 13 variables.

Details

This is a matrix with 180 objects and 13 columns.

Source

Janssen, K.H.A., De Raedt, I., Schalm, O., Veeckman, J.: Microchim. Acta 15 (suppl.) (1998) 253-267. Compositions of 15th - 17th century archaeological glass vessels excavated in Antwerp.

References

K. Varmuza and P. Filzmoser: Introduction to Multivariate Statistical Analysis in Chemometrics. CRC Press, Boca Raton, FL, 2009.

Examples

1
2

Example output

Loading required package: rpart
 num [1:180, 1:13] 13.9 14.2 14.7 14.8 14.1 ...
 - attr(*, "dimnames")=List of 2
  ..$ : NULL
  ..$ : chr [1:13] "Na2O" "MgO" "Al2O3" "SiO2" ...

chemometrics documentation built on May 1, 2019, 7:58 p.m.