Re: st: Subgroup mean imputation

[Barbara Romano <bar.romano@gmail.com>]

Thanks Fernando,
unfortunately it’s not working. I’m stuck with my missing .
I never used looping, but do you think a loop could be a solution?
Something that says stata for each missing in the variable classmean impute the value of classmean of another observation with the same classroom_id…

Thanks again 
Barbara 



Il giorno 15/nov/2013, alle ore 16:11, Fernando Rios Avila <f.rios.a@gmail.com> ha scritto:

> What I usually do is to add the following command to what you already have:
> egen classmean_imputed = max(classmean), by(CODICE_CLASSE)
> HTH.
> Fernando
> 
> On Fri, Nov 15, 2013 at 10:02 AM, Barbara Romano <bar.romano@gmail.com> wrote:
>> Dear all,
>> I’d like to contrast the results I get the mi imputation and the old fashioned mean imputation.
>> I’ve a huge dataset of student test scores with a variable for classroom id.
>> 
>> I used the egen command to create the subgroup mean for each classroom
>> egen classmean = mean(score), by(CODICE_CLASSE)
>> 
>> this create for each student with the same classroom code, BUT for the the students with a missing value for the score.
>> I’d like to impute that classroom subgroup mean for the “missing students”.
>> What should I do?
>> Thank you very much
>> Barbara
>> 
>> 
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