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Re: st: RE: weight


From   Abu Camara <abucamara@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: weight
Date   Wed, 12 Oct 2011 16:32:56 +0300

Nick,

You are right the instruction is not the right one. Any other way of
getting what I want.


On 12 October 2011 16:24, Nick Cox <n.j.cox@durham.ac.uk> wrote:
> Your instructions leave you with no observations with non-zero weights.
>
> The condition -if indicator == 4- selects only those observations for which -indicator- is 4. Conversely, all observations with any other value of -indicator-, 10 or anything else not 4, will be excluded.
>
> It follows that for those observations selected the expression -indicator == 10- will always be logically false and so numerically equal to 0 and so will the aweights be.
>
> Nick
> n.j.cox@durham.ac.uk
>
> Abu Camara
>
> I am tabulating using the following command but the variable
> "indicator" whose code correspond to
> for example "10" is my weight. So the command should use values of the
> variable "value" that correspond to indicator==10  as my weight.
> But I get no output and my output is in fact "no observation". Any
> help would be appreciated.
>
> **--command-----.
> table  rda  year [aweight=indicator==10] if  indicator==4, c(mean  value) row
>
>
> **-------sample data------------------.
> id    country    indicator    year    region    ecog    oil    value
> 11990    Afghanistan    FDI Inflows in current USD millions    1990
> ASIA-8    LDMC-25    Non-Oil-34
> 11990    Afghanistan    Net trade in goods and services (BoP, % of
> GDP)    1990    ASIA-8    LDMC-25    Non-Oil-34
> 11990    Afghanistan    Revenue, excluding grants (% of GDP)    1990
>  ASIA-8    LDMC-25    Non-Oil-34
> 11990    Afghanistan    External debt stocks, total (DOD, % of GDP)
> 1990    ASIA-8    LDMC-25    Non-Oil-34
> 11990    Afghanistan    ODA Commitments (All Donors), in current USD
> millions    1990    ASIA-8    LDMC-25    Non-Oil-34    164.63
> 11990    Afghanistan    Net trade in goods and services (BoP, current
> US$)    1990    ASIA-8    LDMC-25    Non-Oil-34
> 11990    Afghanistan    Cash surplus/deficit (% of GDP)    1990
> ASIA-8    LDMC-25    Non-Oil-34
>
>
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>



-- 
Best Wishes,

Abu Camara

*
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