In addition to various other responses: -contract-
is the official Stata command designed to do this
"ultimate" problem directly.
Nick
[email protected]
Andrey V. Ivanov
> I have a dataset of individuals (and their characteristics)
> that belong
> to some groups and live in different regions.
>
> I would like to be able to extract frequencies of individuals
> by group
> and region and store these frequencies in a different
> dataset, ultimately.
>
> so, I have the following code:
>
> by region group : count (if...)
>
> and now I want this to be stored in a special matrix that has
> a vector
> of group name, a vector of regions, and the vector of the
> result of the
> "count" command.
>
> I know I can bypass all this if I collapse the dataset using
> the "count"
> option.
>
> But, my question is more general: it is about storing the
> output of some
> command inside the "by varname :" construct.
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