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p=[-1.5 -0.58 0.21 -0.96 -0.79; -2.2 -0.87 0.31 -1.4  -1.2];
[pn,meanp,stdp] = prestd(p);
[ptrans,transMat] = prepca(pn,0.02);

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ÆäÖÐ prepca(pn,0.02);

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