我循环这个案例：naked_FINAL$V2
这是一个浮动：
-0.182231972057 -0.0394883040297 -0.175151743984 -1.0 0.00382017030833 -0.138775422474 -0.136759608005 -0.00931498957763 0.0467232056437 -0.177560317462 -0.0462697502318 -0.114731438657
-0.133543749187 -0.0796649609804 -1.0 -0.0871896849893 -0.0671498062617 -1.0 -0.091948159794 -0.0902651789613 -0.157156204337 -0.0847245799066 -0.0981150527055 -0.0673055244922
我想只选择＆gt;浮点数0.05：
for (i in unique(naked_FINAL$V2)) {
high_prion_naked <- naked_FINAL$V2[which(naked_FINAL$V2 < 0.05)]
}
当我在R控制台中执行此操作时，我收到警告消息：
There were 50 or more warnings (use warnings() to see the first 50)
> warnings()
Warning messages:
1: In Ops.factor(naked_FINAL$V2, 0.05) : ‘>’ not meaningful for factors
2: In Ops.factor(naked_FINAL$V2, 0.05) : ‘>’ not meaningful for factors
我能做些什么呢？