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st: Combine uppercase and lowercase text


From   Friedrich Huebler <[email protected]>
To   [email protected]
Subject   st: Combine uppercase and lowercase text
Date   Wed, 21 Feb 2007 16:15:30 -0800 (PST)

My data has string variables with text in uppercase or lowercase
letters. I would like to replace observations that are identical once
capitalization is ignored (e.g., "TEXT" and "text") by the most
common spelling. In some cases there are ties. So far I have only
managed to replace all such observations by their lowercase variant,
as in the example below. I am stumped and would appreciate any advice
on how I should proceed. I use Stata 8.2.

Friedrich Huebler

clear
gen str15 text = ""
input
  "some text"
  "Some Text"
  "SOME TEXT"
  "some other text"
  "some other text"
  "Some other text"
  "Some other text"
  "SoMe TeXt"
  "SoMe TeXt"
  "Some Other Text"
end
count
local n = r(N)
forvalues i = 1/`n' {
  local t = lower(text[`i'])
  replace text = "`t'" if lower(text) == "`t'"
}






 
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