不是标记图上的所有点

本文介绍了不是标记图上的所有点的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

这是我的代码:

A<-read.delim("/Users/macbookair11/Downloads/file.txt",header = T) names(A) attach(A) P<--log10(fdr) plot(lfc,P,type="p", xlab="log2fc", ylab="-log10fdr", pch=16, xlim=c(-5,5) ) abline(h =(-log10(0.01)), untf = FALSE, col="red") abline(v =(log2(2)), untf = FALSE, col="red") abline(v =-(log2(2)), untf = FALSE, col="red") text(lfc,P, labels=Transcript, cex=0.6, pos=4, col="red")

我不需要标记所有点，而只标记那些具有 y>2 和 (x1) 的点.

I need to label not all the points, but only those ones which have y>2 and (x<-1 or x>1).

如何更改我的脚本以使其以正确的方式工作?

How can I change my script to make it work in a right way?

推荐答案

无法向您展示如何处理您的数据，因为它不可用；这显示了 t 检验中异常值"的一些条件标记.

Cannot show you how to do it with your data since its not available; this shows some conditional labeling of "outliers" from a t-test.

x <- rnorm(100) y<- rchisq(100,1) plot(x,y, xlim=c(-3.5,3.5)) abline(v= c(-1.96, 1.96), col='red') abline(h= 3.84, col='red') text(x[ abs(x) > 2|y > 3.8], y[abs(x) > 2|y > 3.8]+.15, paste0("(",round(x[ abs(x) > 2|y > 3.8],1), " , ", round(y[ abs(x) > 2|y > 3.8],1), ")" ) )