R ifelse生成一个新列，但条件列在处理后已经改变了自己

Question

我想使用ifelse生成一个新列，代码如下

full_results$group<-ifelse(full_results$P.Value>0.05,"no_change",
ifelse(full_results$logFC>2,"up",
ifelse(full_results$logFC<-2,"down","no_change")))

这是数据输入图片描述

但是，当处理完成后，logFC列的所有值都变成了"2"以下是结果

如何保持值不变?

Answer 1

在第三个ifelse中，有分配(<-)而不是<

ifelse(full_results$P.Value>0.05,"no_change",
ifelse(full_results$logFC>2,"up",
ifelse(full_results$logFC<2,"down","no_change")))