最近合并CHNS两个数据表遇到以下问题,请大家帮忙,我所用的命令是merge m:1 wave commid hhid line using m10wages,但却出现以下提示variables wave commid hhid line do not uniquely identify observations in the using data,我曾尝试加入省份变量或删掉commid,但是仍然不行,我大概查看了以下,感觉用wave hhid和...
by J. Scott Long, is an essential productivity tool for data analysts. Aimed at anyone who anal...
<hr/>merge的时候为啥会提示variable _merge already defined??? (两次合并) use fdata1.dta, clear merge 1:1 Stkcd year using pdata2.dta, nogen save finaldata, replace <hr/>请问Stata用什么命令提取字符串变量前2个汉字或前n个汉字? 一台汉字占3位。 g x=substr(province,1,6)...
问Stata Wide to Long Reshape -将宽的变量标签作为长值标签应用EN今天这篇是R语言 with Python系列的...
you could already compile Java code into.jarfiles and call those as plugins from Stata. Now you canembed Java code directlyin your Stata do-files and ado-files, just like Mata code and Python code. Stata will compile and execute your Java code on the fly. You can interchange data, metad...
1、定义survey data svyset psuid [pweight=finalwgt], strata(stratid) ——定义primary sampling unit为psuid。可能是测试的编号,1or2 ——定义pweight为finalwgt ——定义stratum identifer为stratid。可能是测试中被试的编号,1to31 2、生成male
Stata only allows variable names up to 32 characters long. If you have very long group and/or field names, the first 32 characters could fail to uniquely identify a variable. If you run into this problem, you're usingSurveyCTO Desktopto export your data, and group names are included in ...
xtset pid yr_visit If we resaved the data, we need not respecify xtset. Technical note Panel data stored as shown above are said to be in the long form. Perhaps the data are in the wide form with 1 observation per unit and multiple variables for the value in each year. For instance...
You may not use a name for ado-files that is already in use. You may not use a name that appears in the English-language dictionary. You may not use a name that is less than 4 characters long. You may not register a name that is a word of statistical jargon that is in common us...
每个儿童有一个独立的观察值,但同一个家庭可能有多个观察值数据转换的菜单窗口Stata的数据转换的菜单路径和窗口:Data Create or change variables Other variable transformation commands Convert data between wide and long 对话框:四种数据的转换方式:(1)从宽数据到长数据(2)从长数据到宽数据(3)回到长数据(4)...