SAS 主成分分析

data cor1; input x1-x4; cards; 40 2.0 5 20 10 1.5 5 30 120 3.0 13 50 250 4.5 18 0 120 3.5 9 50 10 1.5 12 50 40 1.0 19 40 270 4.0 13 60 280 3.5 11 60 170 3.0 9 60 180 3.5 14 40 220 1.5 17 20 130

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