. Author manuscript; available in PMC: 2018 Apr 11.

Published in final edited form as: Wiley Interdiscip Rev Comput Stat. 2016 Aug 4;8(5):162–171. doi: 10.1002/wics.1383

TABLE 2.

Parameter Estimates (50% [2.5%, 97.5%] percentiles) for Fixed and Variable m NNGP Models

	True	NNGP m = 10	NNGP m = 20	NNGP Variable-m
β₁	1	0.98 (0.95 1.02)	0.99 (0.95 1.02)	0.99 (0.95 1.02)
β₂	5	4.98 (4.95 5.02)	4.98 (4.95 5.02)	4.98 (4.95 5.02)
σ²	1	1.64 (0.78 6.39)	1.36 (0.65 5.72)	1.17 (0.71 2.17)
τ²	0.5	0.47 (0.43 0.5)	0.47 (0.44 0.51)	0.47 (0.44 0.51)
ϕ	1	1.01 (0.26 2.55)	1.13 (0.26 2.87)	1.36 (0.66 2.21)