argument is not numeric or logic

作者: kkkkkkang | 来源:发表于2020-09-27 10:50 被阅读0次

#解决办法：FUN后面自己写函数把元素转换为numeric类型即可

aggregate(testing[-1], by = list(testing$V1), FUN = function(x) mean(as.numeric(as.character(x))))

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