为什么R语言fviz_pca_ind函数 画出来的pac图不显示点
pca_plot <- fviz_pca_ind(dat.pca,
geom.ind = "points",#仅显示"点(points)"(但不是“文本(text)”)
col.ind = group,
palette = c("red", "blue","yellow"),
addEllipses = TRUE,
legend.title = "Groups")