Study on County Economy Based on Factor and Cluster Analysis——with 18 counties in Henan Province as Examples

This paper establishes evaluation indexes system of county economy,selects 18 counties in Henan province as samples,applies factor analysis to make empirical study and draws out five factors as main factor,then makes cluster analysis based on main factor score matrix.The findings indicates the synthesized economy strength factor is in the leading position,which reflects the integral level of economy development and industrial production scale,at the same time,the function of agriculture developing factor can't be ignored either.This paper considers that factor and cluster analysis can be combined to study county economy and the conclusion is objective and believable,which can reflect the main factor of influencing county economy development well.