To create a new variablenewidfrom the existing variableoldid, whetheroldidis string or numeric, type . egen newid = group(oldid) The new variablenewidwill contain 1 for the first value ofoldid, 2 for the second value, and so on. ...
replace***usedata_submit,cleargenergy_int=exp(lenergy_int)collapse(mean)energy_int,by(yearcityid)keepifyear==1998rencityid市代码merge1:m市代码usingchinacity40_db.dtaren市代码cityid***ggroup=substr(string(cityid),1,2)bysgroup:egenmean=mean(energy_int)replaceenergy_int=meanifmissing(energy...
Data—Createorchangevariables—Createnewvariable 基本命令 Stata有四个基本的生成和修改变量的命令：gen、egen、replace和recode•.gen和egen分别是generate和extendedgenerate的缩写，它们用于生成新变量•.replace和recode用来改变现存变量的属性或数值•.replace需要与gen一起使用；二者的区别在于，gen用于生成新变量，...
Introducing Stata 19 Experience the latest advancements, including many new statistical features such as machine learning via H2O, CATE, and HDFE; more powerful tables and graphs; and improvements to the interface. See what's new StataNow™ ...
• Graph colors by variable • Create, load, and save sets of frames • Boost-based regular expressions • Vectorized numerical integration, and • New reporting features in putdocx, putexcel, and putpdf 1. Bayesian model averaging (BMA) ...
如果读入excel数 据,则以字符型变量输入日期,并重新格式日期 生成变量的路径 data create or change variables 生成变量的窗口 data create or change variables create new variable 基本命令 stata有四个基本的生成和修改变量的命令:gen、egen、 replace和recode . gen和egen分别是generate和extended generate的缩写,...
The Variables Manager is a tool for managing properties of variables both individually and in groups.It can be used to create variable and value labels,rename variables,change display formats, and manage notes.It has the ability tofilter and group variables as well as to create variable lists...
*createauniformvariabletouseasacontrol genr=runiform *runsdid eststosdid_1:sdidpackspercapitastateyeartreated,vce(placebo)seed(2022) eststosdid_2:sdidpackspercapitastateyeartreated,vce(placebo)seed(2022)covariates(r,projected) *createatable
*Create a dummy variable to identify the group exposed to the treatment. In this example lets assumed that countries with code 5,6, and 7 were treated (=1). Countries 1-4 were not treated (=0). If you already have this skip this step生成地区的虚拟变量 ...
label variable x "~~~"(对变量x做标记) label values x label1(赋予变量x一组标签:label1) label define label1 1 "a1" 2 "a2"(定义标签的具体内容:当x=1时,标记为a1,当x=2时,标记为a2) 频数表: tabulate x1,sort tab1 x1-x7,sort(做x1到x7的频数表,并按照频数以降序显示行) ...