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作者 bugle 在 PTT 全部看板的留言(推文), 共686則
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1F推:?try09/08 19:59
2F推:sum(!is.na(x))08/30 22:03
1F推:因為你拼錯了, try "kappa"08/25 21:10
3F推:當然可以08/15 22:13
1F推:format age_A $7.;08/12 20:30
1F推:這不是原PO要的08/12 19:57
1F推:你需要的是LAG FUNCTION08/10 17:24
3F推:聽不懂....08/10 21:11
3F→:是啊 我還知道R可以做加減乘除哩08/07 23:27
1F推:多謝指教,你說的正是我的工作性質08/02 01:16
2F→:小弟也算是個EG重度使用者,只是一時有感而發,受教了08/02 01:17
3F→:被講得好像都不懂一樣....08/02 01:19
2F推:proc surveyselect ?07/31 22:25
6F推:查一下surveyselect吧 功能還算齊全07/31 23:22