结果：找到“by id : gen n=\_N”相关内容19个，排序为按回复时间降序，搜索更多相关帖子请点击“高级”
The legend of Perseus, Volume II (of 3) : The life-token by Edwin Sidney Hartlan
0 个回复 - 187 次查看 The legend of Perseus, Volume II (of 3) : The life-token by Edwin Sidney Hartland The legend of Perseus, Volume II (of 3) : The life-token by Edwin Sidney Hartland The legend of Perseus, Volume II ( ...2023-7-4 14:16 - 走出 - 经管书评
0 个回复 - 187 次查看 The legend of Perseus, Volume II (of 3) : The life-token by Edwin Sidney Hartland The legend of Perseus, Volume II (of 3) : The life-token by Edwin Sidney Hartland The legend of Perseus, Volume II ( ...2023-7-4 14:16 - 走出 - 经管书评
Magento 2 Explained: Your Step-by-Step Guide to Magento 2
2 个回复 - 279 次查看 Magento 2 Explained: Your Step-by-Step Guide to Magento 2By 作者: Stephen Burge ISBN-10 书号: 1973219387 ISBN-13 书号: 9781973219385 出版日期: 2017-11-03 pages 页数: 482 Magento 2 is amazingly ...2018-12-16 23:43 - 13950050756 - 经管书评
2 个回复 - 279 次查看 Magento 2 Explained: Your Step-by-Step Guide to Magento 2By 作者: Stephen Burge ISBN-10 书号: 1973219387 ISBN-13 书号: 9781973219385 出版日期: 2017-11-03 pages 页数: 482 Magento 2 is amazingly ...2018-12-16 23:43 - 13950050756 - 经管书评
convergent and discriminant validation by the multitrait-multimethod
1 个回复 - 882 次查看 【作者(必填)】 D.T.Campbell and D.W.Fiske 【文题(必填)】 convergent and discriminant validation by the multitrait-multimethod matrix 【年份(必填)】 1959 【全文链接或数据库名称(选填)】psych .bull ...2019-5-4 22:22 - r9205009 - 求助成功区
1 个回复 - 882 次查看 【作者(必填)】 D.T.Campbell and D.W.Fiske 【文题(必填)】 convergent and discriminant validation by the multitrait-multimethod matrix 【年份(必填)】 1959 【全文链接或数据库名称(选填)】psych .bull ...2019-5-4 22:22 - r9205009 - 求助成功区
The intelligent individual and society, by P. W. Bridgman
3 个回复 - 1245 次查看 2017-5-21 07:51 - gilgemash - 市场营销
3 个回复 - 1245 次查看 2017-5-21 07:51 - gilgemash - 市场营销
Oxidative Desulfurization of Fuel Oil with Hydrogen Peroxide Catalyzed by Keggin
3 个回复 - 1365 次查看 Oxidative Desulfurization of Fuel Oil with Hydrogen Peroxide Catalyzed by Keggin-type Polyoxotungstate in a DC Magnetic Field A. H. Jin; B. S. Li; Z. J. Dai Petroleum Science and Technology, 1532-2 ...2010-7-9 09:22 - enxjl1 - 求助成功区
3 个回复 - 1365 次查看 Oxidative Desulfurization of Fuel Oil with Hydrogen Peroxide Catalyzed by Keggin-type Polyoxotungstate in a DC Magnetic Field A. H. Jin; B. S. Li; Z. J. Dai Petroleum Science and Technology, 1532-2 ...2010-7-9 09:22 - enxjl1 - 求助成功区
Convergent and discriminant validation by the multitrait multimethod matrix
1 个回复 - 1015 次查看 【作者(必填)】 Campbell D T and Fiske D W【文题(必填)】 Convergent and discriminant validation by the multitrait multimethod matrix【年份(必填)】 1959 【全文链接或数据库名称(选填)】 Psychologic ...2016-12-25 20:10 - r9205009 - 求助成功区
1 个回复 - 1015 次查看 【作者(必填)】 Campbell D T and Fiske D W【文题(必填)】 Convergent and discriminant validation by the multitrait multimethod matrix【年份(必填)】 1959 【全文链接或数据库名称(选填)】 Psychologic ...2016-12-25 20:10 - r9205009 - 求助成功区
Economic Modeling Using Artificial Intelligence Methods by Tshilidzi Marwala
17 个回复 - 494 次查看 Economic Modeling Using Artificial Intelligence Methods (Advanced Information and Knowledge Processing) by Tshilidzi Marwala Publication Date: April 16, 2013 | ISBN-10: 1447150090 | ISBN-13: 978- ...2014-7-12 21:33 - tigerwolf - 数据分析与数据挖掘
17 个回复 - 494 次查看 Economic Modeling Using Artificial Intelligence Methods (Advanced Information and Knowledge Processing) by Tshilidzi Marwala Publication Date: April 16, 2013 | ISBN-10: 1447150090 | ISBN-13: 978- ...2014-7-12 21:33 - tigerwolf - 数据分析与数据挖掘
【金融学】OptionTheory andTradingAStep-by-Step Guide To Control Risk and Gener
36 个回复 - 3247 次查看 Option Theory and Trading: A Step-by-Step Guide To Control Risk and Generate Profits (repost) Ron Ianieri, "Option Theory and Trading: A Step-by-Step Guide To Control Risk and Generate Prof ...2013-3-11 12:20 - 绵阳 - 金融学（理论版）
36 个回复 - 3247 次查看 Option Theory and Trading: A Step-by-Step Guide To Control Risk and Generate Profits (repost) Ron Ianieri, "Option Theory and Trading: A Step-by-Step Guide To Control Risk and Generate Prof ...2013-3-11 12:20 - 绵阳 - 金融学（理论版）
Graphs generated by Sidon sets and algebraic equations over finite fields
1 个回复 - 857 次查看 【作者(必填)】Le Anh Vinh 【文题(必填)】Graphs generated by Sidon sets and algebraic equations over finite fields 【年份(必填)】2013 【全文链接或数据库名称(选填)】http://www.sciencedirect.com ...2013-11-16 22:53 - lzguo99 - 求助成功区
1 个回复 - 857 次查看 【作者(必填)】Le Anh Vinh 【文题(必填)】Graphs generated by Sidon sets and algebraic equations over finite fields 【年份(必填)】2013 【全文链接或数据库名称(选填)】http://www.sciencedirect.com ...2013-11-16 22:53 - lzguo99 - 求助成功区
Microneedling improves minoxidil response in androgenetic alopecia patients by u
0 个回复 - 447 次查看 【作者(必填)】 23 【文题(必填)】 Microneedling improves minoxidil response in androgenetic alopecia patients by upregulating follicular sulfotransferase enzymes【年份(必填)】 23 【全文链接或数据库 ...2022-7-18 17:37 - internet.hzx - 文献求助专区
0 个回复 - 447 次查看 【作者(必填)】 23 【文题(必填)】 Microneedling improves minoxidil response in androgenetic alopecia patients by upregulating follicular sulfotransferase enzymes【年份(必填)】 23 【全文链接或数据库 ...2022-7-18 17:37 - internet.hzx - 文献求助专区
【学习笔记】The foundation of knowledge must be laid by reading. General ...
2 个回复 - 956 次查看 The foundation of knowledge must be laid by reading. General principles must come from books, which, however, must be brought to the test of real life. 读书是积累知识的基础。基本原理来源于书本，但须经 ...2019-9-30 00:40 - ccwwccww - Forum
2 个回复 - 956 次查看 The foundation of knowledge must be laid by reading. General principles must come from books, which, however, must be brought to the test of real life. 读书是积累知识的基础。基本原理来源于书本，但须经 ...2019-9-30 00:40 - ccwwccww - Forum
bysort new_id:egen min=min(s1)计算结果不对，为什么？
2 个回复 - 1804 次查看 new_id s1 4 20030624 4 20021223 4 20040722 bysort new_id :egen min_fdi=min(s1) 计算结果是： new_id s1 min_fdi 4 20030624 20021224 4 20021223 20021224 4 ...2019-8-12 10:56 - 654525937 - Stata专版
2 个回复 - 1804 次查看 new_id s1 4 20030624 4 20021223 4 20040722 bysort new_id :egen min_fdi=min(s1) 计算结果是： new_id s1 min_fdi 4 20030624 20021224 4 20021223 20021224 4 ...2019-8-12 10:56 - 654525937 - Stata专版
Identification of new ABA- and MEJA-activated sugarcane bZIP genes by data ..
0 个回复 - 415 次查看 摘要：Sugarcane is generally propagated by cuttings of the stalk containing one or more lateral buds, which will develop into a new plant. The transition from th...原文链接:http://onlinelibrary.wiley. ...2018-1-14 20:00 - DL-er - 人工智能论文版
0 个回复 - 415 次查看 摘要：Sugarcane is generally propagated by cuttings of the stalk containing one or more lateral buds, which will develop into a new plant. The transition from th...原文链接:http://onlinelibrary.wiley. ...2018-1-14 20:00 - DL-er - 人工智能论文版
Two non-synonymous markers in PTPN21, identified by genome-wide association..
0 个回复 - 454 次查看 摘要：We conducted data-mining analyses of genome wide association (GWA) studies of the CATIE and MGS-GAIN datasets, and found 13 markers in the two physically l...原文链接:http://www.ncbi.nlm.nih.gov ...2018-1-13 02:59 - 论文库 - 人工智能论文版
0 个回复 - 454 次查看 摘要：We conducted data-mining analyses of genome wide association (GWA) studies of the CATIE and MGS-GAIN datasets, and found 13 markers in the two physically l...原文链接:http://www.ncbi.nlm.nih.gov ...2018-1-13 02:59 - 论文库 - 人工智能论文版
在SPSS中，如何实现 stata中egen var2=count(var1), by(id)的这个命令？
0 个回复 - 3697 次查看 张老师： 您好！ 请问在SPSS中，如何实现 stata中egen var2=count(var1), by(id)的这个命令？ 即在一个变量var1中以id分组，在每组内数有几个cases，把数cases所得的计数放在新变量var2里面。在var ...2015-3-15 18:04 - Rooney1989 - 统计软件培训班VIP答疑区
0 个回复 - 3697 次查看 张老师： 您好！ 请问在SPSS中，如何实现 stata中egen var2=count(var1), by(id)的这个命令？ 即在一个变量var1中以id分组，在每组内数有几个cases，把数cases所得的计数放在新变量var2里面。在var ...2015-3-15 18:04 - Rooney1989 - 统计软件培训班VIP答疑区
bys id: gen 出错的原因？
2 个回复 - 2468 次查看 练习数据为一面板数据。tsset id year输入命令sort idbysort id: gen lagx=l.x系统显示：not sorted再次sort id 还是不能解决问题？ 系统会经常提示没有sort? 何故？ 谢谢。2013-1-27 09:31 - peyzf - 统计软件培训班VIP答疑区
2 个回复 - 2468 次查看 练习数据为一面板数据。tsset id year输入命令sort idbysort id: gen lagx=l.x系统显示：not sorted再次sort id 还是不能解决问题？ 系统会经常提示没有sort? 何故？ 谢谢。2013-1-27 09:31 - peyzf - 统计软件培训班VIP答疑区
已经解决————错误：by id: egen tn = group (n)
5 个回复 - 1707 次查看 连老师，数据结构如下： id n 1 1 1 5 2 3 2 5 2 20 3 17 3 19 4 1 5 10 5 11 5 12 ... 怎么把以上的变量n变成连续的，即： id n 1 1 1 2 2 1 ...2012-6-17 17:46 - beanbean1030 - 统计软件培训班VIP答疑区
5 个回复 - 1707 次查看 连老师，数据结构如下： id n 1 1 1 5 2 3 2 5 2 20 3 17 3 19 4 1 5 10 5 11 5 12 ... 怎么把以上的变量n变成连续的，即： id n 1 1 1 2 2 1 ...2012-6-17 17:46 - beanbean1030 - 统计软件培训班VIP答疑区
