Greetings
While showing someone the merits of "set type double", I encountered
the strangest thing. After entering "set type double", new non-integer
variables created via "generate" are created as doubles, but
non-integer variables created via "replace" are created as floats. For
example...
. desc
Contains data from hsb2.dta
obs: 200 highschool and beyond (200
cases)
vars: 11 6 Feb 2007 12:41
size: 3,200 (99.9% of memory free)
-------------------------------------------------------------------------------
storage display value
variable name type format label variable label
-------------------------------------------------------------------------------
id int %9.0g
-------------------------------------------------------------------------------
Sorted by:
. set type double
. generate id2 = id / 5
. replace id = id / 5
id was int now float
(200 real changes made)
. desc
Contains data from hsb2.dta
obs: 200 highschool and beyond (200
cases)
vars: 12 6 Feb 2007 12:41
size: 5,200 (99.9% of memory free)
-------------------------------------------------------------------------------
storage display value
variable name type format label variable label
-------------------------------------------------------------------------------
id float %9.0g
id2 double %10.0g
-------------------------------------------------------------------------------
Sorted by:
Note: dataset has changed since last saved
Shouldn't both "id" and "id2" both be double?
Michael Mitchell
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