Differences between revisions 4 and 6 (spanning 2 versions)

Stata Drop

-drop- subsets cases or variables.

Usage

drop foo bar baz

drop if foo==1

drop in 1/10

The number of dropped rows is stored in r(N_drop).

The number of dropped variables is stored in r(k_drop).

-  ⇤ ← Revision 4 as of 2023-06-08 20:17:48 → 
  Size: 575
  Editor: DominicRicottone
  Comment:
+   ← Revision 6 as of 2025-10-24 17:05:10 → ⇥
  Size: 496
  Editor: DominicRicottone
  Comment: Rewrite
-Deletions are marked like this.
+Additions are marked like this.
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-The '''`drop`''' command is used to subset cases or variables. See also the [[Stata/Keep|keep]] command.
+'''`-drop-`''' subsets cases or variables.

See also [[Stata/Keep|-keep-]].
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-=== Variables ===
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-}}}
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+drop if foo==1
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-=== Cases ===

{{{
drop if foo==1
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-The number of dropped rows is stored in `r(N drop)`.
+The number of dropped rows is stored in `r(N_drop)`.
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-The number of dropped variables is stored in `r(k drop)`.
+The number of dropped variables is stored in `r(k_drop)`.
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-[[https://www.stata.com/manuals/ddrop.pdf|Stata manual for drop]]
+[[https://www.stata.com/manuals/ddrop.pdf|Stata manual for -drop-]]