主成分分析的样本量问题，大神给支招，谢谢！

沉钟loa

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收藏 2015-06-15

悬赏 10 个论坛币已解决

我在做河北省11个地级市的评价研究，想要用11个地级市作为样本量进行主成分分析，但是用特征值大与1提取的主因子的累计贡献率和检验值如下图：
KMO and Bartlett's Test
Kaiser-Meyer-Olkin Measure of Sampling Adequacy.             .674
Bartlett's Test of Sphericity       Approx. Chi-Square       72.260
      df       28
      Sig.       .000

Total Variance Explained
Component       Initial Eigenvalues                      Extraction Sums of Squared Loadings                      Rotation Sums of Squared Loadings
      Total       % of Variance       Cumulative %       Total       % of Variance       Cumulative %       Total       % of Variance       Cumulative %
1       4.704       58.802       58.802       4.704       58.802       58.802       3.787       47.344       47.344
2       1.828       22.850       81.652       1.828       22.850       81.652       2.745       34.308       81.652
3       .660             8.253       89.905
4       .548       6.853       96.758
5       .148       1.850       98.608
6       .063             .782             99.390
7       .033       .417             99.807
8       .015             .193             100.000
Extraction Method: Principal Component Analysis.
请问，这样可以吗？11个样本量是不是有点少，但是只有11个应该怎么办？？？谢谢！！！