加载中…R语言ggbiplot包PCA主成分分析
(2018-08-27 17:32:01) biocLite("devtools") ##下载ggbiplot
library(devtools)
install_github("vqv/ggbiplot")
gene<-read.table("1.txt",head=T,sep='')
gene.pca <- prcomp(gene, scale. = TRUE)
ggbiplot(gene.pca, obs.scale = 0.5, var.scale = 5, groups = gene$name, varname.size=10,ellipse = TRUE,var.axes = F)
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