Table 1 Statistics of the four clusters defined by finite mixture modelling.

From: Investigating the origin and authenticity of Victoria Cross medals using X-ray fluorescence spectrometry

Cluster

1

2

3

4

No. of pre-1914 VC

9

1

14

37

No. of post-1914 VC

6

32

0

1

Median date

1914

1917

1857

1857

Mean date

1899

1921

1862

1869

Date St. Dev

39.6

21.3

9.48

19.4

Prop. measured by RA

0.33

0.64

0.93

0.53

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