Table 4. Principal component analysis of 11 socioeconomic status indicator variables from 2006 Census Profile and 2005 taxfiler data for the census metropolitan area of Guelph.

Principal Component Eigenvalues
Component	Eigenvalue	Difference	Proportion		Cumulative		PCw (%)
PC1	5.613710	3.414840	0.5103		0.5103		62.39
PC2	2.198860	1.014040	0.1999		0.7102		24.44
PC3	1.184830	0.298320	0.1077		0.8179		013.17
C4	0.886505	0.414606	0.0806		0.8985		──
C5	0.471899	0.258890	0.0429		0.9414		──
C6	0.213008	0.022701	0.0194		0.9608		──
C7	0.190307	0.074306	0.0173		0.9781		──
C8	0.116001	0.037282	0.0105		0.9886		──
C9	0.078719	0.053057	0.0072		0.9958		──
C10	0.025662	0.005162	0.0023		0.9981		──
C11	0.020500	──	0.0019		1		──
Indicator Variable Loadings (Eigenvector Correlations)
Variable				PC1		PC2		PC3	Factor Score
Median Family Income ($)				* -0.3687		0.1538		0.1220	-0.1764
Median Single Person Income ($)				-0.3164		-0.2904		0.2619	-0.2339
Low Income Families, After-tax (%)				0.3697		0.2157		-0.1286	0.2664
Low Income Unattached, After-tax (%)				** 0.2059		0.5395		0.0046	0.2609
Lone Parent Families (%)				0.4015		0.0218		0.0437	0.2616
Single Mothers (%)				0.3367		-0.0199		0.2628	0.2398
Unemployment Rate, 15 years and over (%)				0.2516		0.2733		0.1483	0.2433
Low Education, 15 years and over (%)				0.1620		-0.5230		-0.1265	-0.0434
Average Home Value ($)				-0.3290		0.3365		-0.0002	-0.1231
Average Monthly Rent ($)				0.0054		0.0255		0.8784	0.1253
Managerial Occupation (%)				-0.3354		0.3025		-0.1395	-0.1537