Site Selection of Precast Concrete Component Factory Based on PCA and GIS

Table 3

Characteristic root and cumulative variance contribution rate of influencing factors.

Component	Initial eigenvalue			Extraction load sum
	%	%	%	%	%	%
1	9.129729	70.22868	9.129729	70.22868	9.129729	70.22868
2	3.323498	25.56537	3.323498	95.79406	3.323498	25.56537
3	0.478061	3.677394	0.478061
4	0.066186	0.509126	0.066186
5	0.002416	0.018583	0.002416
6	0.000109	0.000841	0.000109