r - 在R中提取LDA(线性判别分析)数据

Question

当我运行这条线时

my.lda<-lda(Group ~ X1+X2+X3+X4, data = df)

我得到一个以这一行结尾的长输出

Proportion of trace:

   LD1    LD2    LD3    LD4 

0.8750 0.0958 0.0286 0.0006 

如何将迹线的 LD1 和 LD2 比例存储在单独的变量中？

谢谢

Answer 1

尝试:

prop.table(my.lda$svd^2)

根据文档，lda(...)$svd 是一个向量

the singular values, which give the ratio of the between- and within-group standard deviations on the linear discriminant variables. Their squares are the canonical F-statistics.