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Re: st: Data Envelopment Analyses


From   Sarfraz Khan <sarkhan3@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Data Envelopment Analyses
Date   Tue, 30 Jul 2013 18:15:15 -0500

Thanks to both Nick and Scott and also to Anders.

On Tue, Jul 30, 2013 at 3:26 PM, Scott Merryman
<scott.merryman@gmail.com> wrote:
> -fs- is user written command by Nick Cox
>
> -findit fs- to download.
>
> Scott
>
>
> On Tue, Jul 30, 2013 at 2:12 PM, Scott Merryman
> <scott.merryman@gmail.com> wrote:
>> Yes with -levelsof- and -foreach-.
>>
>> For example:
>>
>> sysuse auto,clear
>> gen dmu = _n
>> levelsof foreign, local(levels)
>> foreach l of local levels {
>>     dea weight length = mpg if foreign == `l', saving(dea_ouptput_`l')
>> }
>> clear
>> fs dea_o*
>> append using `r(files)'
>> tobit theta price foreign , ul(1)
>>
>>
>> Scott
>>
>>
>> On Tue, Jul 30, 2013 at 1:51 PM, Sarfraz Khan <sarkhan3@gmail.com> wrote:
>>> Thank you Scott. This is very helpful. One more question if you can
>>> answer please. You can run regression by group (e.g. regression by
>>> each industry group). Can one also do the above analysis by group. I
>>> tried to use bysort function but didn't work. Is there a way to do run
>>> above command by group?
>>>
>>> Again, thanks everyone for replying.
>>>
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