= Stata Metadata =

Stata exposes a rich API for querying internal '''metadata'''.

<<TableOfContents>>

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== Labels ==

Variable and value labels are primarily manipulated by the [[Stata/Label|`-label-`]] command.

{{{
. label variable foo "yes or no?"

. label define yesno 1 "Yes" 0 "No"

. label values foo yesno

. label list yesno
yesno:
           0 No
           1 Yes
}}}

Numeric values can be quickly prepended to value labels using the '''`-numlabel-`''' command.

{{{
numlabel foo, add mask("#. ")
}}}

To access or store the text of a variable label, try:

{{{
local varlab_foo: variable label foo
}}}

To manipulate value labels, try:

{{{
local vallab_foo: value label foo
local vallab_foo_1: label `vallab_foo' 1, strict
}}}

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== Descriptives ==

{{{
display _N    // number of cases
display c(k)  // number of variables
}}}



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CategoryRicottone