level: Stata
Questions and Answers List
level questions: Stata
| Question | Answer |
|---|---|
| Normal regression | reg yvar xvar, r |
| Regression med kontrol | reg yvar xvar zvar, r |
| hypotesetest | ttest yvar, by(xvar) unequal |
| ciplot | ciplot yvar, by(xvar) |
| Samme stikprøve | generate used=e(sample) |
| Justeret R^2 | Display e(r2_a) |
| Interflex | interflex yvar xvar zvar |
| Marginale effekter | Margins, dydx(x) at(z=(0(1)2)) |
| Interaktionsanalyse | Reg y c.x##i.z z1 z2 z3, r |
| Grafisk illustration af marginale effekter | marginsplot (post estimation) |
| ACPR | acpr xvar, (optioner omkring lowess og lfit) |
| DiD-analyse | Reg y x##bølge, cluster(id) |
| Angivelse af treatment | bys id: egen TG=max(euLeaveContact) |
| polynomisk regression | reg yvar xvar##xvar |
| logistisk | logit yvar xvar |
| odd-ratio | , or |
| faktoranalyse | factor item1 item2, pcf |
| postestimationskommando der giver f-test | testparm |
| fixed effects | xtset niveau2 derefter: xtreg yvar xvar zvar, fe cluster(niveau1) |