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我有如下数据集:在所有数据集的最频繁出现的词汇
interests<-data.frame(interests=c("A mentor/teacher,Friendship",
"A play partner,Princess by day slut by night,Friendship,A sub,A slave",
"A relationship,A play partner,Friendship,Events",
"Not Defined"))
所以数据集如下:
interests
<fctr>
A mentor/teacher,Friendship
A play partner,Princess by day slut by night,Friendship,A sub,A slave
A relationship,A play partner,Friendship,Events
Not Defined
我需要知道,多少次每学期在数据集中重复?
例如在“友谊”已经重复倍,但“一出戏的合作伙伴”已经reapeated 倍,其余的都重复一次。
我已经看到类似的问题,如this,但问题是条款的长度是不同的。