Evaluation of Ecological Environment Quality in Chongqing Main City Area Based on Principal Component Analysis

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Kaiser–Meyer–Olkin measure</td><td class="align_center" colspan="2">0.748</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left" rowspan="3">Bartlett sphericity test</td><td class="align_center">Approximate chi-square</td><td class="align_center">87.767</td></tr><tr><td class="align_center">Df</td><td class="align_center">36.00</td></tr><tr><td class="align_center">Sig</td><td class="align_center">0.00</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Test results of KMO and Bartlett.</div>

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Table 6

Table 6: Evaluation of Ecological Environment Quality in Chongqing Main City Area Based on Principal Component Analysis 