= Stata Ds =

'''`-ds-`''' lists variables.

<<TableOfContents>>

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== Usage ==

By default, `-ds-` simply returns the given variable list.

{{{
ds foo bar baz
}}}

To list all variables not included in a given variable list, try the '''`not`''' option:

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



=== Specification ===

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)
}}}

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

 * `type typelist`
 * `format patternlist`
   * For example, `format %t*` selects all variables with a [[Stata/DataFormats#Date_and_Datetime_Data|datetime display format]]
 * `varlabel patternlist`
   * For example, `varlabel *temp*` selects all variables with a variable label including the word 'temp'
 * `vallabel patternlist`
 * `char patternlist`

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== Stored Results ==

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

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== See also ==

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



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