各种方式计算绿晋江 (http://www.jjwxc.net) 小说排名
计算过程:
取原始数据中的四列: 积分rank,收藏数collect,评论数comment,单章最大点击量 max_chapter_click
调用pca计算,根据前两个主成分计算,方差贡献达90%
> pca
Standard deviations:
[1] 1.7848343 0.6658461 0.5284915 0.3028405
Rotation:
PC1 PC2 PC3 PC4
rank 0.5163638 -0.4667678 0.1895280 -0.6925138
collect 0.5036702 -0.3873323 -0.6137144 0.4686625
comment 0.5116272 0.1379844 0.6992417 0.4798531
max_chapter_click 0.4668216 0.7829826 -0.3138388 -0.2655580
> summary(pca)
Importance of components:
PC1 PC2 PC3 PC4
Standard deviation 1.7848 0.6658 0.52849 0.30284
Proportion of Variance 0.7964 0.1108 0.06983 0.02293
Cumulative Proportion 0.7964 0.9073 0.97707 1.00000