Extract a matrix (e.g. r(table) after adjust command

[Dusan Petrovic]

Hello Statalister,

I'm running regressions followed by the adjust command. Now I would like to have the adjusted means (and CI) in a matrix (e.g. r(table) ). so I can use these values and put them in other matrices etc.

regress ...
adjust if e(sample), by(sex) ci

matrix k=r(table) // This only generates a void [1,1] and not a matrix based on the adjust commands with means and CI

Thank you for your kind help

Dusan

[Clyde Schechter]

If you are using the current version of Stata (13), then instead of using -adjust- you should move up to the -margins- command (and use factor variables: -help fvvarlist-). -margins- returns its results as r(table), and will give you what you seek.

The older command -adjust- does not return anything in r().

[Dusan Petrovic]

Ok, thanks a lot Clyde.

[Dusan Petrovic]

I just have a small issue with the margins command.

I actually want to fix for covariables :
age (continuous)
sex (factorial)
center (factorial : 3 levels)

in my model I also have the occupation, and I would like to have the adjusted means : by(occupation)

qreg al2score c.age i.sex i.center i.occupation

margins i.sex i.center c.age if e(sample), by(occupation) // continuous??

but the margins command returns the interactions between occupation and sex and occupation and center, which I don't want , I just want to fix for the covariables : mean age, center (~0.3), sex (~0.5), and to have adjusted means by occupation.

Sorry for bothering

Thanks for your help dusan

P.S. There is also a problem with age because it's continuous and non-integer

[Clyde Schechter]

Depending on what you want to do with the variables age, sex, and center, you probably want one of the following:

margins occupation // OTHER VARIABLES RETAIN THEIR ORIGINAL VALUES

OR

margins occupation, atmeans // OTHER VARIABLES SET TO THEIR SAMPLE MEANS

OR

margins occupation, at(...fill in your own values for other variables here..  see -at()- option in -help margins-)

[Dusan Petrovic]

Clyde,

margins occupation, atmeans

was just what I needed.

Thank you very much

Cheers

Dusan