Table 3.

Intercorrelation matrix of model terms for compressive response.

Model terms	a	P (%)	S L	R 3 (μm)	d 0 (μm)	R 4 (μm)	r 2′
a	1	0.19	0.63	0.75	0.70	0.56	−0.81
P (%)		1	−0.04	0.48	0.28	−0.51	−0.21
S L			1	0.42	0.64	0.62	−0.74
R 3 (μm)				1	0.88	0.02	−0.57
d 0 (μm)					1	0.25	−0.74
R 4 (μm)						1	0.78
r 2′							1