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 版块 作者 回复/查看 最后发表
一篇不错的正则表达式介绍 R语言论坛 kk22boy 2013-3-20 5 1988 tianwk 2020-2-9 00:12:36
请教加倾向匹配评分模型 Stata专版 black~soul 2013-4-9 1 1395 夏天的雪912 2019-1-9 12:10:22
悬赏 文献求助：Design Strategies to Postpone Consumers' Product Replacement - [!reward_solved!] attachment 求助成功区 manuel3 2014-1-8 1 1387 cmwei333 2016-7-24 02:00:18
悬赏 Environmental risks of new–generation fluorocarbons in replacement of potent gr - [!reward_solved!] attachment 求助成功区 zgj1984411 2013-8-1 1 1111 Mengguren15 2015-9-8 12:34:26
Subsets with random sampling with replacement in R HLM专版 Lisrelchen 2014-4-19 1 1168 Lisrelchen 2014-4-19 12:36:35
How do I sample without replacement using a sampling-with-replacement function? HLM专版 Lisrelchen 2014-4-19 0 1368 Lisrelchen 2014-4-19 12:09:25
悬赏 A bivariate optimal replacement policy for a repairable system - [!reward_solved!] attachment 求助成功区 wyq1987 2014-3-12 3 787 giresse 2014-3-12 15:51:11
悬赏 求助文献一篇 24 - [悬赏 20 个论坛币] 悬赏大厅 melody308 2014-1-20 0 813 melody308 2014-1-20 20:06:03
悬赏 求助英文一篇 2 - [!reward_solved!] attachment 求助成功区 melody308 2014-1-14 1 1186 牛尾巴 2014-1-15 08:10:23
悬赏 求解一道选择题 - [悬赏 3 个论坛币] 爱问频道 aaacelia 2013-12-27 3 1006 gtattender 2014-1-3 01:32:44
悬赏 On the application of a capital replacement model for amixed fleet - [!reward_solved!] attachment 求助成功区 jingchongyi 2013-11-4 1 689 leoluo123 2013-11-5 04:42:48
悬赏 Characterization of optimal policy for capital replacement models - [!reward_solved!] attachment 求助成功区 jingchongyi 2013-10-12 1 687 迦太基 2013-10-12 13:36:38
请问，如何用R做样本均值的分布的柱状图？ R语言论坛 炸鱼薯条Chasing 2013-9-17 5 2582 炸鱼薯条Chasing 2013-9-18 02:17:49
CFA 考场注意事项 经管考证 andiebogard 2013-5-29 2 1170 慕容致 2013-5-31 09:51:41
请问sas EM replacement节点和impute节点有啥区别？ SAS专版 littletwo1 2013-5-20 0 2343 littletwo1 2013-5-20 14:21:57
悬赏 Hormone replacement therapy and risk of breast cancer: results from epidemiologi - [!reward_solved!] attachment 求助成功区 ihc7788c 2013-4-12 6 1454 hello_xn 2013-4-17 10:15:21
悬赏 求助：A note on the optimal replacement problem - [!reward_solved!] attachment 求助成功区 wyq1987 2013-4-7 1 760 xjqxxjjqq 2013-4-7 19:01:23
Hormone replacement therapy and risk of breast cancer: results from epidemiologi 文献求助专区 ihc7788c 2013-2-26 0 1011 ihc7788c 2013-2-26 15:38:16
Hormone replacement therapy and risk of breast cancer: results from epidemiologi 文献求助专区 ihc7788c 2013-2-22 0 1213 ihc7788c 2013-2-22 13:57:24
刚开始学习SAS有两个问题需要求教。。 attach_img SAS专版 我愿是一棵树 2013-1-29 7 1442 lust 2013-1-31 17:35:16
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