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factor变量如何改变levels?比如说,5个level,合并成3个
R语言论坛
danbaidong
2013-6-17
10
23213
hugebear
2016-10-30 22:59:54
有些命令不接受factor variables
Stata专版
peyzf
2013-7-2
2
3266
peyzf
2015-1-8 23:27:18
The Oil Factor: Protect Yourself and Profit from the Coming EnergyCrisis
-
[悬赏
2
个论坛币]
文献求助专区
johnzi0128
2013-7-23
3
1374
johnzi0128
2014-2-7 02:50:16
航空人力因素手册第二版Handbook_of_Aviation_Human_Factors
行业分析报告
金屋匿娇颜
2013-8-4
3
1472
大智
2013-8-12 20:25:21
求助Sleep loss as a risk factor for obesity and diabetes.
- [!reward_solved!]
求助成功区
刀剑林
2013-8-12
1
777
giresse
2013-8-12 10:59:20
Emeral一篇:The loyalty factor
- [阅读权限
255
]- [!reward_solved!]
求助成功区
yinhezhiwang
2013-7-20
1
337
bxmzone
2013-7-22 22:21:08
100币求Investigations of Factors that Affect Consumers' Online
文献求助专区
pplain
2013-7-7
1
1012
lyxxxz
2013-7-7 05:55:25
factor变量中*与#的差别
统计软件培训班VIP答疑区
peyzf
2013-7-2
2
2043
peyzf
2013-7-3 01:17:28
US factory activity expands in June, jobs decline
- [阅读权限
5
]
真实世界经济学(含财经时事)
reduce_fat
2013-7-2
1
295
dq19871223
2013-7-2 22:21:23
求助Factor-Timing Model
文献求助专区
gdyan2001
2013-6-29
2
1470
gdyan2001
2013-6-30 01:22:26
求完整fama french 3 factor的sas代码和相应数据
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[悬赏
100
个论坛币]
悬赏大厅
志明宝贝
2013-6-29
0
1677
志明宝贝
2013-6-29 10:54:15
Dynamic Factor Model - OUP
- [!reward_solved!]
求助成功区
夏目贵志
2013-6-24
4
1461
夏目贵志
2013-6-25 07:07:39
文献求助:The factor income distribution in China: 1978–2007
- [!reward_solved!]
求助成功区
neil.liu.haaa
2013-6-24
2
1815
军少
2013-6-24 19:24:54
Three-Level and Mixed-Level Factorial Experiments
- [!reward_solved!]
求助成功区
violinangel
2013-6-13
1
798
suhongyu000
2013-6-14 13:10:01
General Factorial Experiments
- [!reward_solved!]
求助成功区
violinangel
2013-6-13
1
795
suhongyu000
2013-6-13 12:48:33
Two-Level Factorial Experiments
- [!reward_solved!]
求助成功区
violinangel
2013-6-13
1
875
suhongyu000
2013-6-13 12:48:05
Internet EDI adoption factors: power, trust and vision
- [!reward_solved!]
求助成功区
jyjkshuai
2013-6-8
1
1223
liuningzheng
2013-6-8 11:46:31
有谁看过RALITSA PETKOVA 06年的文章:Do the Fama–French Factors Proxy for Innova
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[悬赏
1
个论坛币]
悬赏大厅
第七小分队
2013-5-31
2
1867
第七小分队
2013-5-31 19:55:06
3. The Normal Linear Factor Model
- [!reward_solved!]
求助成功区
violinangel
2013-6-1
1
830
suhongyu000
2011-6-3 16:32:06
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