Measurements of Forensic Glass Fragments

Arguments

RI refractive index; more precisely the refractive index is 1.518xxxx.

The remaining 8 measurements are percentages by weight of oxides.

Na sodium
Mg manganese
Al aluminium
Si silicon
K potassium
Ca calcium
Ba barium
Fe iron
type The fragments were originally classed into seven types, one of which was absent in this dataset. The categories which occur are window float glass (WinF: 70), window non-float glass (WinNF: 76), vehicle window glass (Veh: 17), containers (Con: 13), tableware (Tabl: 9) and vehicle headlamps (Head: 29).

Format

This data frame contains the following columns:

Description

The fgl data frame has 214 rows and 10 columns. It was collected by B. German on fragments of glass collected in forensic work.


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