结果:找到“matched=0”相关内容46个,排序为按回复时间降序,搜索更多相关帖子请点击“高级”
单独专利数据
0 个回复 - 954 次查看
单独专利数据
1、ASIE release matched design patents - 398,483 records (387,250 true matches, among which 291,578 are unique)
2、ASIE release matched invention patents - 332,682 records (317,268 true ...
2022-5-3 09:48 - 拥有持续学习的能力 - 现金交易版
盈余管理2000-2019
12 个回复 - 2211 次查看
盈余管理2000-2019
参考经济研究2014《决策权配置、盈余管理和投资效率》一文做法,采用修正Jones模型估计,具体模型和做法见论文98页!由于需要分行业年度回归,正对当年度行业年数据不足15个样本的进行剔除, ...
2020-10-10 18:52 - 半岩有洞顶有池1 - 现金交易版
joinby,unmatched(master)
1 个回复 - 1526 次查看
sort prov year
joinby prov year using C:\Users\ACER\Desktop\数据\stata数据\real-company.dta,unmatched(master) //主数据是1998-2019的,using是1999-2019的,少一年
运行结果总是显示
. joinby prov yea ...
2020-7-8 11:19 - 愚笨9999 - Stata专版
mismatched input '<EOF>'
0 个回复 - 2641 次查看
求问各位大佬,运行proc sql程序后,sas报错:
CLI准备错误:Error while processing statement: FAILED: Parse Error: line 1:2397 mismatched input'' expecting ) near '41954562' in in right op
是什么意思 ...
2019-10-26 13:52 - 6111133930 - SAS专版
Matched Sampling for Causal Effects
10 个回复 - 4223 次查看
Matched Sampling for Causal Effects
Cambridge University Press | ISSN: 0521857627 | 2006-09-04 | PDF | 502 Pages | 8,6 Mb
Matched sampling is often used to help assess the causal effect of some e ...
2010-2-7 14:16 - 毒谷123 - 求助成功区