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How do I sub sample data by group using ddply?

三岁会撩人·2020-08-25 05:39· 评论·文章

How do I sub sample data by group using ddply?

戒情不戒烟·2020-08-25 06:00·2 回答·问答

Conditional NA filling by group

乱世女痞·2020-08-24 16:59· 评论·文章

Conditional NA filling by group

疯言疯语·2020-08-24 17:30·6 回答·问答

Function “diff” over various groups in R

唯我独甜·2020-07-27 06:21·1 回答·问答

Function “diff” over various groups in R

该账号已被封号·2020-07-27 05:55· 评论·文章

Make regressions and predictions for groups in R

▲ chillily·2020-07-25 08:50·2 回答·问答

Make regressions and predictions for groups in R

戒情不戒烟·2020-07-25 09:23· 评论·文章

R plyr, data.table, apply certain columns of data.

啃猪蹄的小仙女·2020-07-14 09:26· 评论·文章

R plyr, data.table, apply certain columns of data.

我欲成王，谁敢阻挡·2020-07-14 10:01·6 回答·问答

Use of ddply + mutate with a custom function?

姐就是有狂的资本·2020-07-13 11:32·1 回答·问答

Use of ddply + mutate with a custom function?

再贱就再见·2020-07-13 11:35· 评论·文章

Loops to create new variables in ddply

放荡不羁爱自由·2020-07-06 02:52· 评论·文章

Loops to create new variables in ddply

对你真心纯属浪费·2020-07-06 02:24·3 回答·问答

dplyr: apply function table() to each column of a

闹够了就滚·2020-07-02 09:08· 评论·文章

dplyr: apply function table() to each column of a

一纸荒年 Trace。·2020-07-02 09:22·4 回答·问答

Subset a list - a plyr way?

做自己的国王·2020-06-18 09:52· 评论·文章

Subset a list - a plyr way?

爷、活的狠高调·2020-06-18 10:07·3 回答·问答

l_ply: how to pass the list's name attribute i

放我归山·2020-06-11 13:21·3 回答·问答

l_ply: how to pass the list's name attribute i

放荡不羁爱自由·2020-06-11 13:52· 评论·文章

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