Heritage Science

Table 10 Correlation coefficient and the P value of cultural relic glass characteristics

From: Identification of ancient glass categories based on distance discriminant analysis

	\({\mathrm{SiO}}_{2}\)	\({\mathrm{Na}}_{2}\mathrm{O}\)	\({\mathrm{K}}_{2}\mathrm{O}\)	\(\mathrm{CaO}\)	\(\mathrm{MgO}\)	\({\mathrm{Al}}_{2}{\mathrm{O}}_{3}\)	\({\mathrm{Fe}}_{2}{\mathrm{O}}_{3}\)
Coefficient	− 0.6703	0.1173	− 0.5832	− 0.1933	− 0.0948	− 0.2411	− 0.2888
\(\mathrm{P value}\)	5.47e−10	0.3445	2.23e−10	0.1170	0.4455	0.0493	0.0177

	\(\mathrm{CuO}\)	\(\mathrm{PaO}\)	\(\mathrm{BaO}\)	\({\mathrm{P}}_{2}{\mathrm{O}}_{5}\)	\(\mathrm{SrO}\)	\({\mathrm{SnO}}_{2}\)	\({\mathrm{SO}}_{2}\)
Coefficient	− 0.2273	0.7695	0.7145	0.1570	0.5881	0.0633	− 0.0649
\(\mathrm{P value}\)	0.0644	2.78e−14	1.13e−11	0.2046	1.67e−7	0.6110	0.6017

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