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About SVGZ Graphic: Classifying Similiar States for Income Distribution ....

I've been playing with different ways to use K-Means classification to find related classes of states when it comes to income distribution. I tried dividing up the states into four groups, which came up some interesting income distributions, as shown below.

Class	Less than $10,000	$10,000 to $14,999	$15,000 to $19,999	$20,000 to $24,999	$25,000 to $29,999	$30,000 to $34,999	$35,000 to $39,999	$40,000 to $44,999
Low – 1	8	5.5	5.5	5.7	5.3	5.2	4.7	4.7
Higher – 2	5.5	3.7	3.3	3.3	3.2	3.4	3.1	3.2
High – 3	4.6	3.3	3.2	3.5	3.5	3.8	3.6	3.8
Moderate – 4	5.6	4.2	4.3	4.6	4.6	4.8	4.4	4.6
Class	$45,000 to $49,999	$50,000 to $59,999	$60,000 to $74,999	$75,000 to $99,999	$100,000 to $124,999	$125,000 to $149,999	$150,000 to $199,999	$200,000 or more
Low – 1	4.2	8	9.8	11.9	7.9	4.8	4.6	4.3
Higher – 2	3	6.1	8.4	12.1	10	7.4	9.9	14.3
High – 3	3.5	7.1	10.1	13.8	10.7	7.5	8.7	9.2
Moderate – 4	4.1	8.1	10.5	13.5	9.4	5.9	5.9	5.7