Total Variance Explained
Component Initial Eigenvalues Extraction Sums of Squared Loadings
Total % of Variance Cumulative % Total % of Variance Cumulative %
1 5.779 32.108 32.108 5.779 32.108 32.108
2 1.392 7.732 39.840 1.392 7.732 39.840
3 1.218 6.766 46.606 1.218 6.766 46.606
4 1.018 5.654 52.260 1.018 5.654 52.260
5 .993 5.517 57.777
6 .901 5.003 62.781
7 .884 4.910 67.690
8 .769 4.273 71.963
9 .690 3.833 75.797
10 .677 3.762 79.559
11 .652 3.622 83.181
12 .573 3.182 86.363
13 .544 3.024 89.387
14 .496 2.755 92.142
15 .437 2.426 94.568
16 .387 2.152 96.720
17 .302 1.680 98.400
18 .288 1.600 100.000
Extraction Method: Principal Component Analysis.
如果我抽取的话一定是选特征值大于1的,但是问题是只选一个成分解释总体方差,合适不合适,原因是什么? 求高人指点。总是理解不到点子上