= Stata Ds =

The '''`ds`''' command lists variables.

<<TableOfContents>>

----



== Usage ==

Used alone, `ds` will simply return the given variable list.

{{{
ds foo bar baz
}}}

To list all variables ''other than'' `foo`, `bar`, and `baz`, try the '''`not`''' option:

{{{
ds foo bar baz, not
}}}

Variables can be described by a specification and `ds` will return the list of variables matching (or not matching) it.

{{{
ds, spec(type numeric)
ds, not(type string)
}}}

----



== Specifications ==

Valid specifications for the '''`spec(spec)`''' and '''`not(spec)`''' options are:

 * `type typelist`
 * `format patternlist`
 * `varlabel patternlist`
 * `vallabel patternlist`
 * `char patternlist`

Types are any of the [[Stata/DataTypes|data types]] plus categories like `string`, `str#`, and `numeric`.

Patterns look like `%t*` (as in `format %t*`, which selects all variables with a [[Stata/DataFormats#Date_and_Datetime_Data|datetime display format]]) or `*weight*` (as in `varlabel *weight*`, which selects all variables with a variable label including the word 'weight').

----



== Stored Results ==

The list of selected variables is stored in `r(varlist)`, without any truncation or indentation.

----



== See also ==

[[https://www.stata.com/manuals/dds.pdf|Stata manual for ds]]



----
CategoryRicottone