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一列中含有这些元素，
  [1] "B3" "B1" "AB" "B3" "B1" "B3" "B2" "B1" "AB" "B3" "B1" "B2" "A"  "AB" "B3" "A"  "B2" "B1" "AB" "B1" "B3" "B1" "B3" "B3"
[25] "B1" "B2" "AB" "B2" "B2" "B2" "A"  "AB" "B2" "AB" "A"  "B2" "AB" "B1" "B2" "B1" "B1" "B1" "AB" "B1" "AB" "A"  "B1" "B2"
[49] "B1" "B1" "AB" "B2" "B3" "A"  "B1" "B3" "B2" "B1" "B2" "B2" "B3" "B3" "A"  "B1" "B1" "B1" "B2" "B2" "B2" "B2" "A"  "B1"
[73] "B2" "B2" "B1" "B1" "B1" "B3" "B1" "B2" "B1" "B2" "B3" "B1" "B2" "AB" "B2" "B1" "B2" "A"  "AB" "AB" "B1" "B2" "A"  "B2"
[97] "AB" "B1" "B2" "B3" "B2" "AB" "B3" "B1" "B1" "B1" "A"  "B2" "A"  "AB" "AB" "AB" "B2" "B2" "B1" "B2" "AB" "B3" "AB" "B1"
[121] "AB" "B1" "B2" "AB" "B2" "B1" "B2" "B2" "AB" "B3" "B2" "AB" "B2" "A"  "B2" "B2" "B2" "B2" "A"  "B2" "AB" "B2" "AB" "B1"
[145] "B2" "AB" "B2" "AB" "AB" "AB" "B1" "B2" "AB" "B1" "B2" "AB" "AB" "B1" "B1" "B2" "B1" "B2" "B2" "AB" "B3" "AB" "B3" "AB"
[169] "B2" "B2" "B2" "B2" "B2" "AB" "B3" "AB" "B2" "B2" "B2" "B2" "B2" "AB" "A"  "AB" "AB" "B2" "B2" "B3" "B1" "B2" "A"  "AB"
[193] "A"  "AB" "A"  "B2" "A"  "B1" "B2"

想将A AB B1 定义为 0，B2 B3定义为1，到底怎么定义，自己这么写的
ifelse(mydata1$WHO == 'A'|'AB'|'B1',0,1)
报错
Error in mydata1$WHO == "A" | "AB" :
  operations are possible only for numeric, logical or complex types

到底该怎么定义，求大神指导

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关键词：Operations operation possible Complex Logical

我自己搞明白了

wang052235 发表于 2018-11-7 22:30
一列中含有这些元素，
  [1] "B3" "B1" "AB" "B3" "B1" "B3" "B2" "B1" "AB" "B3" "B1" "B2" "A"  "AB" "B ...

参考https://bbs.pinggu.org/thread-6733210-1-1.html

先标记一下，方法应该很多。再想想

应该这样写就对了，
ifelse(mydata1$WHO=='A'|mydata1$WHO=='AB'|mydata1$WHO='B1',0,1)
就是说‘ | ’后面都是逻辑表达式就可以了，亲测有效