Description

The glass data frame has 214 observations and 10 variables, representing glass fragments.

Usage

Format

This data frame contains the following columns:

RI

refractive index

Na

weight percent in corresponding oxide

Mg

weight percent in corresponding oxide

Al

weight percent in corresponding oxide

Si

weight percent in corresponding oxide

K

weight percent in corresponding oxide

Ca

weight percent in corresponding oxide

Ba

weight percent in corresponding oxide

Fe

weight percent in corresponding oxide

Type

Type of glass:

1

building\_windows\_float\_processed,

2

building\_windows\_non\_float\_processed,

3

vehicle\_windows\_float\_processed,

4

vehicle\_windows\_non\_float\_processed (none in this database),

5

containers,

6

tableware,

7

headlamps

Source

P. M. Murphy and D. W. Aha (1999), UCI Repository of Machine Learning Databases, http://archive.ics.uci.edu/ml/datasets/glass+identification