R: glass types of the glass data

glass.grp {chemometrics} | R Documentation

## glass types of the glass data

### Description

13 different measurements for 180 archaeological glass vessels from different groups are included. These groups are certain types of glasses.

### Usage

    data(glass.grp)

### Format

The format is: num [1:180] 1 1 1 1 1 1 1 1 1 1 ...

### Details

This is a vector with 180 elements referring to the groups.

### 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

    data(glass.grp)
    str(glass.grp)

[Package chemometrics version 1.4.2 Index]