在这里发生的超级奇怪,
我尝试复制PCA的Matlab网站示例:
load hald
coeff = pca(ingredients)
coeff =
-0.0678 -0.6460 0.5673 0.5062
-0.6785 -0.0200 -0.5440 0.4933
0.0290 0.7553 0.4036 0.5156
0.7309 -0.1085 -0.4684 0.4844
但是,当我应用同样的事情时,我得到了:
coeff = pca(ingredients)
coeff =
36.8218 6.8709
29.6073 -4.6109
-12.9818 4.2049
23.7147 6.6341
-0.5532 4.4617
-10.8125 3.6466
-32.5882 -8.9798
22.6064 -10.7259
-9.2626 -8.9854
-3.2840 14.1573
9.2200 -12.3861
-25.5849 2.7817
-26.9032 2.9310
有这方面的线索吗?快把我逼疯了! 谢谢 干杯 埃米利亚诺