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For each row, get column names where data is equal to a certain value（3个答案）
3天前关闭。
我的数据如下所示

ID<- c(1,2,3,4,5)
CV<- c("Detected", "Not Detected", "Detected", "Not Detected", "Detected")
RV<- c("Not Detected", "Detected", "Not Detected", "Detected", "Not Detected")
BP<- c("Detected", "Detected", "Not Detected", "Detected", "Detected")
FL<- c("Detected", "Detected", "Not Detected", "Detected", "Detected")

df<- data.frame(ID, CV, RV, BP, FL)

我想合并每个观测中的"检出"响应，并创建一个新列，给出每个检出响应的列名，如下所示

ID          CV                RV               BP              FL             Result
1           Detected          Not Detected     Detected        Detected       CV, BP, FL
2           Not Detected      Detected         Detected        Detected       RV, BP, FL
3           Detected          Not Detected     Not Detected    Not Detected   CV
4           Not Detected      Detected         Detected        Detected       RV, BP, FL
5           Detected          Not Detected     Detected        Detected       CV, BP, FL