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← Revision 16 as of 2025-10-24 15:58:53 ⇥
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| = Metadata = | = Stata Metadata = |
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| Data about data. | Stata exposes a rich API for querying internal '''metadata'''. <<TableOfContents>> |
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| == Quick Tips == | == Labels == |
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| Stata has a number of interactive tools for examining metadata. | Variable and value labels are primarily manipulated by the [[Stata/Label|`-label-`]] command. |
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| di _N // number of cases di c(k) // number of variables |
. 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 }}} ---- == Descriptives == {{{ display _N // number of cases display c(k) // number of variables |
Stata Metadata
Stata exposes a rich API for querying internal metadata.
Contents
Labels
Variable and value labels are primarily manipulated by the `-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 YesNumeric 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
Descriptives
display _N // number of cases display c(k) // number of variables