Stata Stored Results

Stata commands store intermediary and final values. These can be useful for programming, so they are exposed in a variety of way. into the r matrix, as a side effect. It is indexed by unique names; for example, many commands store the sample size as r(N). To view all available stored values, use return list.

Macros are declared as either local or global, and are accessed by quoting with a prefixed grave and a postfixed apostrophe

R Class

The r() class stores results from general syntax commands. As an example:

count if EXPR
local total=r(N)

Try return list, all to see all stored results available in the r() class. Leaving off the all option hides some results.

E Class

The e() class stores results from estimations.

Try ereturn list, all to see all stored results available in the e() class. Leaving off the all option hides some results.

S Class

The s() class stores results from parsing commands.

Try sreturn list to see all stored results available in the s() class.

N Class

The n() class stores results that don't belong in any of the r(), e(), or s() classes.

C Class

Not actually a class for stored results: see System Parameters.

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