ichengzi/stata.md

## stata.md

      
    Raw
  

              stata.md
            
          
    一、简单操作

下载外部命令：ssc install outreg2 logout pwcorr_a
二、描述性统计

outreg2 using xxx.doc, replace sum(log) title(Decriptive statistics)
outreg2 using xxx.doc, replace sum(log) keep(**v** **v** **v**) title(Decriptive statistics)
outreg2 using xxx.doc, replace sum(log) keep(**v** **v** **v**) eqkeep(N mean min max) title(Decriptive statistics)
bysort x:outreg2 using xxx.doc, replace sum(log) title(Decriptive statistics)
三、相关性分析

logout, save (xxx)word replace: pwcorr 
logout, save(xxx) word replace: pwcorr_a 
四、多元回归

outreg2 using xxx.doc,replace tstat bdec(3) tdec(2) ctitle(y)
outreg2 using xxx.doc,replace tstat bdec(3) tdec(2) e(r2_a,F) addstat(F test,e(p))
outreg2 using xxx.doc,append tstat bdec(3) tdec(2) e(r2_a,F) addstat(F test,e(p))
固定效应：
xtreg y x1 x2 x3,fe r
outreg2 using xxx.doc,replace tstat bdec(3) tdec(2) ctitle(y) e(r2_a,F) addstat(F test,e(p)) addtext(Company FE, YES )
xtreg y x1 x2 x3 i.year,fe r
outreg2 using xxx.doc,replace tstat bdec(3) tdec(2) ctitle(y) e(r2_a,F) addstat(F test,e(p)) addtext(Company FE, YES,Year FE, YES)

基础命令：
Describe 
List 
Sum(obs统计数量， mean平均值， std.dev标准差, min最小值, max最大值)
pwcorr_a price weight mpg displ, star1(0.01) star5(0.05) star10(0.1)  显著性解释变量是原因，被解释变量是结果。