摘要: set.seed(1) h1<-hist(rnorm(1000,100,5)) h2<-hist(rnorm(1000,99,5)) plot(h2,col=rgb(255,0,0,50,maxColorValue =255),border = NA) plot(h1,col=rgb(225,225 阅读全文
posted @ 2020-04-11 20:32 天使不设防 阅读(1756) 评论(0) 推荐(0) 编辑