R语言报错，没有重复的某一列成为行名，总是报错
row.names(mm3) <- mm3[,2]
Error in `.rowNamesDF<-`(x, value = value) :
missing values in 'row.names' are not allowed
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解决方案-把数据框转变成matrix
mm3 <- as.matrix(mm3)
row.names(mm3) <- mm3[,2]
row.names(mm3) <- mm3[,2]
Error in `.rowNamesDF<-`(x, value = value) :
missing values in 'row.names' are not allowed
mm3 <- as.matrix(mm3)
row.names(mm3) <- mm3[,2]
本文标题：Error in `.rowNamesDF<-`(x, valu
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