结果：找到“numeric str”相关内容27个，排序为按回复时间降序，搜索更多相关帖子请点击“高级”
Numerical Methods for Structured Markov Chains
3 个回复 - 1095 次查看 Intersecting two large research areas–numerical analysis and applied probability/quering theory–this book is a self -contained introduction to the numerical solution of structured Markov chains, whi ...2019-7-16 07:13 - nivastuli - 博弈论
3 个回复 - 1095 次查看 Intersecting two large research areas–numerical analysis and applied probability/quering theory–this book is a self -contained introduction to the numerical solution of structured Markov chains, whi ...2019-7-16 07:13 - nivastuli - 博弈论
Optimizing Pad Bending Structure Based on Numerical Simulation to Prevent Metal
1 个回复 - 434 次查看 【作者(必填)】Min Zhou Min Zhou [*]This person is not on ResearchGate, or hasn't claimed this research yet. 【文题(必填)】Optimizing ...2022-6-6 06:07 - victorbian - 求助成功区
1 个回复 - 434 次查看 【作者(必填)】Min Zhou Min Zhou [*]This person is not on ResearchGate, or hasn't claimed this research yet. 【文题(必填)】Optimizing ...2022-6-6 06:07 - victorbian - 求助成功区
Numerical evaluation of an equicorrelated multivariate non-central t distributio
1 个回复 - 563 次查看 【作者(必填)】Nelson, P. R 【文题(必填)】Numerical evaluation of an equicorrelated multivariate non-central t distribution 【年份(必填)】1981 【全文链接或数据库名称(选填)】Communications in S ...2021-12-6 22:26 - nalan22 - 求助成功区
1 个回复 - 563 次查看 【作者(必填)】Nelson, P. R 【文题(必填)】Numerical evaluation of an equicorrelated multivariate non-central t distribution 【年份(必填)】1981 【全文链接或数据库名称(选填)】Communications in S ...2021-12-6 22:26 - nalan22 - 求助成功区
Numerical Distribution Functions of Likelihood Ratio Tests for Cointegration
1 个回复 - 2304 次查看 2007-8-24 16:07 - xuehe - 计量经济学与统计软件
1 个回复 - 2304 次查看 2007-8-24 16:07 - xuehe - 计量经济学与统计软件
Functional Numerical Methods: Applications to Abstract Fractional Calculus
10 个回复 - 755 次查看 English | PDF | 2017 (2018 Edition) | 166 Pages | ISBN : 3319695258 | 2.3 MB This book presents applications of Newton-like and other similar methods to solve abstract functional equations involv ...2017-10-29 23:27 - igs816 - 经管书评
10 个回复 - 755 次查看 English | PDF | 2017 (2018 Edition) | 166 Pages | ISBN : 3319695258 | 2.3 MB This book presents applications of Newton-like and other similar methods to solve abstract functional equations involv ...2017-10-29 23:27 - igs816 - 经管书评
The NumPy array: a structure for efficient numerical computation
6 个回复 - 1003 次查看 The NumPy array: a structure for efficient numerical computation [*]Stéfan van der Walt, Stellenbosch University South Africa [*]S. Chris Colbert, Enthought USA [*]Gael Varoquaux, INRIA Saclay Fra ...2016-7-19 08:26 - Nicolle - winbugs及其他软件专版
6 个回复 - 1003 次查看 The NumPy array: a structure for efficient numerical computation [*]Stéfan van der Walt, Stellenbosch University South Africa [*]S. Chris Colbert, Enthought USA [*]Gael Varoquaux, INRIA Saclay Fra ...2016-7-19 08:26 - Nicolle - winbugs及其他软件专版
【数值分析】Ostrowski Type Inequalities and Applications in Numerical Integratio
7 个回复 - 1222 次查看 Ostrowski Type Inequalities and Applications in Numerical Integration Editors: Sever S. Dragomir, Themistocles M. Rassias It was noted in the preface of the book "Inequalities Involving Func ...2016-11-2 04:15 - cmwei333 - 金融学（理论版）
7 个回复 - 1222 次查看 Ostrowski Type Inequalities and Applications in Numerical Integration Editors: Sever S. Dragomir, Themistocles M. Rassias It was noted in the preface of the book "Inequalities Involving Func ...2016-11-2 04:15 - cmwei333 - 金融学（理论版）
Numerical Methods for Unconstrained Optimization and Nonlinear Equations
4 个回复 - 2179 次查看 Numerical Methods for Unconstrained Optimization and Nonlinear EquationsAuthors: J. E. Dennis, Jr. and Robert B. Schnabel J. E. Dennis, Jr.: Rice University, Houston, Texas R ...2014-5-24 17:56 - eachonly - 求助成功区
4 个回复 - 2179 次查看 Numerical Methods for Unconstrained Optimization and Nonlinear EquationsAuthors: J. E. Dennis, Jr. and Robert B. Schnabel J. E. Dennis, Jr.: Rice University, Houston, Texas R ...2014-5-24 17:56 - eachonly - 求助成功区
Parallel and Distributed Computation:Numerical Methods
9 个回复 - 4139 次查看 书名：Parallel and Distributed Computation:Numerical Methods 作者：Bertsekas,D.P.& Tsitsiklis,J.N., 出版：Prentice－Hall,Englewood Cliffs,NJ,1989.2011-5-30 19:09 - qinchunbin - 求助成功区
9 个回复 - 4139 次查看 书名：Parallel and Distributed Computation:Numerical Methods 作者：Bertsekas,D.P.& Tsitsiklis,J.N., 出版：Prentice－Hall,Englewood Cliffs,NJ,1989.2011-5-30 19:09 - qinchunbin - 求助成功区
Numerical solutions to coupled-constraint equilibrium problems
3 个回复 - 1786 次查看 【作者(必填)】 Jacek Krawczyk 【文题(必填)】 Numerical solutions to coupled-constraint (or generalised Nash) equilibrium problems 【年份(必填)】 2007 【全文链接或数据库名称(选填)】http://link.sp ...2015-8-6 20:19 - ticket1988 - 求助成功区
3 个回复 - 1786 次查看 【作者(必填)】 Jacek Krawczyk 【文题(必填)】 Numerical solutions to coupled-constraint (or generalised Nash) equilibrium problems 【年份(必填)】 2007 【全文链接或数据库名称(选填)】http://link.sp ...2015-8-6 20:19 - ticket1988 - 求助成功区
destring在转换字符型数据时老出现：contains nonnumeric characters，no replace，该
42 个回复 - 96567 次查看 2012-6-26 13:35 - yuyu1195 - Stata专版
42 个回复 - 96567 次查看 2012-6-26 13:35 - yuyu1195 - Stata专版
read.xport()读取.xpt文件时为啥变量类型和.xpt文件的不一样呢，Numeric全变成string
4 个回复 - 1136 次查看 如题，请教大家，为啥R语言用read.xport()读取.xpt文件时为啥变量类型和.xpt文件的不一样呢，Numeric几乎全变成string了，然后就几个变量没变，怎么保证变量类型和原来的变量类型一致呢？以下是我的代码，谢谢大家！ ...2021-11-30 13:57 - 2286116865 - R语言论坛
4 个回复 - 1136 次查看 如题，请教大家，为啥R语言用read.xport()读取.xpt文件时为啥变量类型和.xpt文件的不一样呢，Numeric几乎全变成string了，然后就几个变量没变，怎么保证变量类型和原来的变量类型一致呢？以下是我的代码，谢谢大家！ ...2021-11-30 13:57 - 2286116865 - R语言论坛
【求助】为什么会出现numeric operator applied to string data
3 个回复 - 7163 次查看 麻烦请高人指点下啊。郁闷ING中！！！！！！2009-4-5 13:56 - hanzhien507 - EViews专版
3 个回复 - 7163 次查看 麻烦请高人指点下啊。郁闷ING中！！！！！！2009-4-5 13:56 - hanzhien507 - EViews专版
输入城市字母 全部都被识别为nonnumeric 没有办法destring
3 个回复 - 1791 次查看 输入城市字母 全部都被识别为[/backcolor]nonnumeric 没有办法destring [/backcolor]2017-9-21 20:23 - zyramos - Stata专版
3 个回复 - 1791 次查看 输入城市字母 全部都被识别为[/backcolor]nonnumeric 没有办法destring [/backcolor]2017-9-21 20:23 - zyramos - Stata专版
如何将一列同时包含numerical和non-numerical的变量destring，non-numerical保持yuala
4 个回复 - 1439 次查看 有一些基金投资组合里面是包含了A股和港股 A股的股票代码symbol是数字，而一些港股的股票代码是数字+字母的non-numerical 如何对symbol这一列变量destring，让数字的部分destring，而非数字的部分保持原来格式 ...2018-2-14 12:29 - mengdengliao - Stata专版
4 个回复 - 1439 次查看 有一些基金投资组合里面是包含了A股和港股 A股的股票代码symbol是数字，而一些港股的股票代码是数字+字母的non-numerical 如何对symbol这一列变量destring，让数字的部分destring，而非数字的部分保持原来格式 ...2018-2-14 12:29 - mengdengliao - Stata专版
Instructor's manual for numerical analysis (richard l. burden)
1 个回复 - 863 次查看 Instructor manual for Numerical Analysis (Richard，8th) 经典教材答案！私信我吧，免费给！2016-1-29 11:11 - Emma221 - 灌水吧
1 个回复 - 863 次查看 Instructor manual for Numerical Analysis (Richard，8th) 经典教材答案！私信我吧，免费给！2016-1-29 11:11 - Emma221 - 灌水吧
Book: Computational Finance: Numerical Methods for Pricing Financial Instruments
2 个回复 - 1828 次查看 Computational Finance: Numerical Methods for Pricing Financial Instrumentsby George Levy [*]Series: Quantitative Finance [*]Hardcover: 456 pages [*]Publisher: Butterworth-Heinemann (February 10, ...2014-9-5 11:17 - riskpremium - 金融学（理论版）
2 个回复 - 1828 次查看 Computational Finance: Numerical Methods for Pricing Financial Instrumentsby George Levy [*]Series: Quantitative Finance [*]Hardcover: 456 pages [*]Publisher: Butterworth-Heinemann (February 10, ...2014-9-5 11:17 - riskpremium - 金融学（理论版）
求助 如何将变量的格式string转成numeric？？
5 个回复 - 10458 次查看 现在有一个很大的数据库 其中有一列变量格式是 string "10082008" 请问各位怎样能把这个变量的数据从string 转成numeric ，或者说删除这个双引号。 先谢谢了2009-7-1 04:49 - guangqing - SPSS论坛
5 个回复 - 10458 次查看 现在有一个很大的数据库 其中有一列变量格式是 string "10082008" 请问各位怎样能把这个变量的数据从string 转成numeric ，或者说删除这个双引号。 先谢谢了2009-7-1 04:49 - guangqing - SPSS论坛
Nonlinear numerical analysis of high voltage cable terminal rubber stress cone
1 个回复 - 879 次查看 【作者(必填)】Ma Yong-qi 【文题(必填)】Nonlinear numerical analysis of high voltage cable terminal rubber stress cone 【年份(必填)】15-17 July 2011 【全文链接或数据库名称(选填)】http://ieeexp ...2013-2-21 16:01 - minibarglass - 求助成功区
1 个回复 - 879 次查看 【作者(必填)】Ma Yong-qi 【文题(必填)】Nonlinear numerical analysis of high voltage cable terminal rubber stress cone 【年份(必填)】15-17 July 2011 【全文链接或数据库名称(选填)】http://ieeexp ...2013-2-21 16:01 - minibarglass - 求助成功区
tandfonline Numerical Evaluation of Compound Poisson Distributions
2 个回复 - 828 次查看 【作者(必填)】H. F. Van Landinghama & Syed A. Shariqb 【文题(必填)】Numerical Evaluation of Compound Poisson Distributions 【年份(必填)】1974 【全文链接或数据库名称(选填)】http://www.tandf ...2012-12-3 13:37 - 352693585 - 求助成功区
2 个回复 - 828 次查看 【作者(必填)】H. F. Van Landinghama & Syed A. Shariqb 【文题(必填)】Numerical Evaluation of Compound Poisson Distributions 【年份(必填)】1974 【全文链接或数据库名称(选填)】http://www.tandf ...2012-12-3 13:37 - 352693585 - 求助成功区
[下载]Lecture Notes: Bootstrap Methods in Econometrics: Theory and Numerical Perfo
10 个回复 - 5989 次查看 Abstract The bootstrap is a method for estimating the distribution of an estimator or test statistic by resampling one's data. It amounts to treating the data as if they were the population for th ...2005-1-12 06:51 - hanszhu - 计量经济学与统计软件
10 个回复 - 5989 次查看 Abstract The bootstrap is a method for estimating the distribution of an estimator or test statistic by resampling one's data. It amounts to treating the data as if they were the population for th ...2005-1-12 06:51 - hanszhu - 计量经济学与统计软件
Summarizing Shape Numerically: The g-and-h Distributions
1 个回复 - 569 次查看 【作者(必填)】David C. Hoaglin, Frederick Mosteller, John W. Tukey 【文题(必填)】Summarizing Shape Numerically: The g-and-h Distributions 【年份(必填)】2011 【全文链接或数据库名称(选填)】http ...2013-5-26 09:11 - violinangel - 求助成功区
1 个回复 - 569 次查看 【作者(必填)】David C. Hoaglin, Frederick Mosteller, John W. Tukey 【文题(必填)】Summarizing Shape Numerically: The g-and-h Distributions 【年份(必填)】2011 【全文链接或数据库名称(选填)】http ...2013-5-26 09:11 - violinangel - 求助成功区
numerical methods for optimal control problems with state constraints
1 个回复 - 1464 次查看 author: Radoslaw Pytlak, 1999 1 Introduction 1 1 The Calculus of Variations 1 2 Optimal Control 5 3 Numerical Methods for Optimal Control Problems 7 2 Estimates on Solutions to Differential ...2010-1-29 13:45 - 幽悠 - 金融学（理论版）
1 个回复 - 1464 次查看 author: Radoslaw Pytlak, 1999 1 Introduction 1 1 The Calculus of Variations 1 2 Optimal Control 5 3 Numerical Methods for Optimal Control Problems 7 2 Estimates on Solutions to Differential ...2010-1-29 13:45 - 幽悠 - 金融学（理论版）
请教：导入数据时如何保证string变量不被自动转换为numeric变量？
0 个回复 - 2589 次查看 请教：在Stata导入数据时，如何保证为数字但实际上是string的变量不会自动转换为numeric变量？谢谢！ 比如，“01”和“001”是两个作为ID的string变量，在从.txt或.csv导入数据时，“01”和“001”会被自动转换为 ...2010-11-11 13:59 - undertone - Stata专版
0 个回复 - 2589 次查看 请教：在Stata导入数据时，如何保证为数字但实际上是string的变量不会自动转换为numeric变量？谢谢！ 比如，“01”和“001”是两个作为ID的string变量，在从.txt或.csv导入数据时，“01”和“001”会被自动转换为 ...2010-11-11 13:59 - undertone - Stata专版
A numerical simulation analysis of labour mobility restrictions in China
0 个回复 - 1882 次查看 A numerical simulation analysis of (Hukou) labour mobility restrictions in China(2007) John Walley and Shuming Zhang2009-11-27 09:23 - 夸克之一 - 发展经济学
0 个回复 - 1882 次查看 A numerical simulation analysis of (Hukou) labour mobility restrictions in China(2007) John Walley and Shuming Zhang2009-11-27 09:23 - 夸克之一 - 发展经济学
Numerical distribution functions of fractional unit root and cointegration ...
0 个回复 - 216 次查看 2004-11-4 17:53 - 毛入学率645 - Forum
0 个回复 - 216 次查看 2004-11-4 17:53 - 毛入学率645 - Forum
