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st: value labels dropped unexpectedly


From   Jacob Wegelin <jwegelin@vcu.edu>
To   statalist@hsphsun2.harvard.edu
Subject   st: value labels dropped unexpectedly
Date   Mon, 5 Oct 2009 16:00:17 -0400 (EDT)

Sometimes, when I save a dataset in a temporary file and then immediately reload it, my value label disappears. Can anyone explain why?

This does not always happen; in a toy dataset (below the first example) the value label is not dropped.

(I am using Stata 10.1.)

. . label list QOL
QOL:
           1 PhysicalFunctioning
           2 RolePhysical
           3 BodilyPain
           4 GeneralHealth
           5 Vitality
           6 SocialFunctioning
           7 RoleEmotional
           8 MentalHealth
           9 Physical
          10 Mental

. tempfile TMPOUT

. save `TMPOUT', replace
(note: file /var/folders/HR/HRdt7XjbGC4gfgEM2M7yWE+++TM/-Tmp-//S_51906.00004u not found)
file /var/folders/HR/HRdt7XjbGC4gfgEM2M7yWE+++TM/-Tmp-//S_51906.00004u saved

. use `TMPOUT', clear

. des, short

Contains data from /var/folders/HR/HRdt7XjbGC4gfgEM2M7yWE+++TM/-Tmp-//S_51906.00004u
  obs:           366
 vars:           215                          5 Oct 2009 14:37
 size:       455,304 (95.7% of memory free)
Sorted by:  Total_Biopsy_Count  PID  Biopsy

. label list QOL
value label QOL not found
r(111);

. . clear . . input x

             x
  1. 1
  2. 3
  3. 1
  4. end

. . label define x 1 "one" 3 "three"

. label values x x

. label list x
x:
           1 one
           3 three

. tempfile TEMP

. save `TEMP', replace
(note: file /var/folders/HR/HRdt7XjbGC4gfgEM2M7yWE+++TM/-Tmp-//S_51906.00004w not found)
file /var/folders/HR/HRdt7XjbGC4gfgEM2M7yWE+++TM/-Tmp-//S_51906.00004w saved

. use `TEMP', clear

. label list x
x:
           1 one
           3 three

.

Thanks for any insight

Jacob A. Wegelin
Assistant Professor
Department of Biostatistics
Virginia Commonwealth University
730 East Broad Street Room 3006
P. O. Box 980032
Richmond VA 23298-0032
U.S.A. E-mail: jwegelin@vcu.edu URL: http://www.people.vcu.edu/~jwegelin

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