A variable created by -tempvar- is hanging around inside the saved dataset.
Its name is __000000
Is that normal behavior? I had never noticed this behavior before, but maybe
I am just confused.
See the (reproducible) code below, taken from my results window.
The case presented here is benign, but soemtimes malign cases occur:
A. the code gives an error message and still performs the operation, as in
the exaple of -twoway- here below
B. I believe that at least in one case, it actually broke the code. It was
in a -reshape long-. (I can't be sure though, because I was tearing a huge
file apart to figure out where the problem was coming from).
If, after the code below, you actually issue once again
. use debugauto, clear
then variable __000000 appears in the variable window.
Any clarification? Is it a bug? I am missing something?
Best Regards,
Renzo Comolli
Here is the code to reproduce (most) of the behavior described.
. about
Intercooled Stata 8.2 for Windows
Born 18 May 2004
. sysuse auto, clear
(1978 Automobile Data)
. tempvar num_miss
. gen `num_miss'=0
. save debugauto, replace
file debugauto.dta saved
.
. use debugauto, clear
(1978 Automobile Data)
. describe __000000
storage display value
variable name type format label variable label
----------------------------------------------------------------------------
---
__000000 float %9.0g
. tab __000000, mi
__000000 | Freq. Percent Cum.
------------+-----------------------------------
0 | 74 100.00 100.00
------------+-----------------------------------
Total | 74 100.00
. twoway (lfit price mpg) (scatter price mpg), by( foreign)
__000000 already defined
* but the graph still appears correctly
*
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