How to obtain the estimated dependent variable by replacing the regressors on Stata?

[Carolina Vasquez]

Hello! I'm fairly new to Stata and to Econometrics and I'm wondering if it's possible to obtain the estimated dependent variable of a regression on Stata.

With this I mean, after obtaining the coefficients of the regressors, replace the variables with given numbers and alongside the coefficients get the dependent variable.

Say you have this regression: y = b₀ + b₁ x₁ + b₂ x₂ and using a database with the variables you compute "reg y x1 x2 " and get the coefficients (e.g. b₀ = 1 , b₁ = 2 , b₂ = 3). Now say you are given the values x₁ = 10 and x₂ = 20 and you want to get the "y". I know this is trivial but can you compute the y on Stata having all that information? (I mean if there's a command for that)

I'm sorry if this is an easy question but I'm just having Econometrics this semester and I'm totally new to Stata.

Thank you in advance

[Joseph Coveney]

I think that you're looking for lincom, which would be used in this manner:

regress y c.(x1 x2)
lincom _b[_cons] + 10 * _b[x1] + 20 * _b[x2]

You could also use margins instead of lincom (and it would be less typing).

margins , at(x1 = 10 x2 = 20)

If you're looking for predictions, that is, y at observed x1-x2 pairs, then you'd use predict

predict double y_hat, xb

and it would leave the predictions in the dataset.

help lincom
help margins
help predict

[Carolina Vasquez]

Sorry for the very late reply. This worked wonders. Thank you!