问题描述
nest <- as.data.frame(as.factor(c("10","11","12b","13","15a","17b","18b","1b","21","22b","25","26","28","5","6a","8a")))
colnames(nest)[1] = "nest"
nest$Egg <- as.numeric(c("1","4","2","7","3","6","1","13"))
我的问题是，如何将 nest 向量按以下顺序排序：
"1b","8a","10","28" ?
有人可以帮我解决这个问题吗？
解决方法
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