Analysis of Ecological Environment Evaluation and Coupled and Coordinated Development of Smart Cities Based on Multisource Data

Table 2

Variance analysis results of response surface test design of ecological environment index in smart city.

Source	Sum of squares	df	Mean square	value	value
Model	819.66	9	91.07	8.95	0.0043
A-environmental excellence rate	424.28	1	424.28	41.68	0.0003
B-environmental remediation capability	321.31	1	321.31	31.57	0.0008
C-environmental pollution pressure	39.96	1	39.96	3.93	0.088
AB	4.91	1	4.91	0.48	0.5099
AC	1.5	1	1.5	0.15	0.7124
BC	19.85	1	19.85	1.95	0.2053
A^2	2.61	1	2.61	0.26	0.628
B^2	4.66	1	4.66	0.46	0.5203
C^2	0.98	1	0.98	0.096	0.7652
Residual	71.25	7	10.18
Lack of fit	70.37	3	23.46	107.42	0.0003
Pure error	0.87	4	0.22
Cor total	890.91	16

Note: indicates significant difference, ; indicates extremely significant.