I'm not sure what the problem is, I tested this example in Stata 9.2,
and it seems to work there, as does this improved example based on
posts by David and Eva:
sysuse auto.dta, clear
tempfile auto
save "`auto'", replace
clear
sysuse auto.dta, clear
drop make
tempfile auto2
save "`auto2'", replace
clear
desc using "`auto'", varlist
local x `r(varlist)'
desc using "`auto2'", varlist
local x2 `r(varlist)'
local diff2: list x - x2
di "`diff2'"
On Tue, Sep 16, 2008 at 5:01 PM, Michael McCulloch <[email protected]> wrote:
> Hi Tim,
> Is your example for Stata 10? When I try to reproduce your nifty example, I
> get:
> . save "`auto2'", replace
> invalid file specification
> r(198);
>
> Michael
>
>
>> There is probably a more elegant solution to this, but saving the
>> variable names in a local macro and comparing the macro lists might
>> work, e.g., :
>>
>>
>> . sysuse auto.dta, clear
>> (1978 Automobile Data)
>>
>> . preserve
>>
>> . drop make
>>
>> . tempfile auto2
>>
>> . save "`auto2'", replace
>> file C:\DOCUME~1\twade\LOCALS~1\Temp\ST_00000005.tmp saved
>>
>> . restore
>>
>> .
>> . local x
>>
>> . foreach var of varlist _all {
>> 2. local x "`x' " "`var'"
>> 3. }
>>
>> . di "`x'"
>> make price mpg rep78 headroom trunk weight length turn displacement
>> gear_ratio foreign
>>
>> .
>> . clear
>>
>> . use `auto2'
>> (1978 Automobile Data)
>>
>> .
>> . local x2
>>
>> . foreach var of varlist _all {
>> 2. local x2 "`x2' " "`var'"
>> 3. }
>>
>> .
>> .
>> . local diff2: list x - x2
>>
>> . di "`diff2'"
>> make
>>
>> .
>> end of do-file
>>
>> . Hope this helps, TIm
>>
>>
>>
>> On Tue, Sep 16, 2008 at 1:22 PM, Raphael Fraser
>> <[email protected]> wrote:
>> > Robert,
>> >
>> > The problem with cf2 & cf3 is that, they compare the variable VALUES.
>> > I intend to append the data and just want to ensure that the variable
>> > NAMES match and not the variable values.
>> >
>> > At present -append- offers no way to check this.
>> >
>> > Raphael
>> >
>> > On Tue, Sep 16, 2008 at 3:35 AM, Robert A Yaffee <[email protected]>
>> wrote:
>> >> Raphael,
>> >> Check out the compare cf2 and cf3 commands. The latter two can be
>> found on the SSC archive.
>> >> Regards,
>> >> Robert
>> >>
>> >> Robert A. Yaffee, Ph.D.
>> >> Research Professor
>> >> Silver School of Social Work
>> >> New York University
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
