Table 2. Average R² values for intra-array and inter-array comparisons.

Array comparison	Average linear R2	Average log R2
Intra-array (5′→3′, quadrant versus quadrant)	0.999	0.983
Inter-array (5′→3′ versus 5′→3′)	0.998	0.993
Inter-array (3′→5′ versus 3′→5′)	0.994	0.988
Inter-array (5′→3′ versus 3′→5′)	0.988	0.972

Average R² values were calculated from comparisons of multiple quadrants within one array for intra-array comparisons or comparisons across multiple arrays for inter-array comparisons.