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Re: st: Re: -encode- help..


From   "moleps islon" <moleps2@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Re: -encode- help..
Date   Wed, 19 Nov 2008 21:28:48 +0100

So apparently no easy solution to this. The perfect solution would be
a command that accepted a varlist, automatically generated new
variables concatenating the old variablename with a userspecified
_name_ and labeled the values according to a predefined labelset...
That would also let the user set the startnumber for the codes...
Gotta learn programming:-)



On Wed, Nov 19, 2008 at 9:17 PM, Martin Weiss <martin.weiss1@gmx.de> wrote:
> Some amount of beforehand investigation is thus inevitable. If Moleps could
> find one variable that had all possible values present, he could substitute
> that in the line "encode sex, g(gender)" and it would work...
>
> HTH
> Martin
> _______________________
> ----- Original Message ----- From: "Sergiy Radyakin"
> <serjradyakin@gmail.com>
> To: <statalist@hsphsun2.harvard.edu>
> Sent: Wednesday, November 19, 2008 9:11 PM
> Subject: Re: st: Re: -encode- help..
>
>
>> Hi,
>>
>> this will not work in case when one of the variables does not contain
>> all codes present in all other variables.
>>
>> (table shows unique values only,sorted alphabetically, like Stata does it)
>>
>> Var1 Var2 Var3
>> A       B       A
>> B      C       B
>> C
>>
>> After encoding Var1 will be coded as 1=A, 2=B, 3=C; Var2: 1=B, 2=C;
>> Var3: 1=A,2=B, which is in all probability not what moleps islon
>> wanted.
>>
>> In general one must find a union of all possible values, then encode.
>> Practically this is probably easier to solve by reshaping the data to
>> the long format, encoding the single string variable, and then
>> reshaping back. If there are a few values to label, and those are
>> known a priori, I would hardwire them into the program and label
>> manually.
>>
>> Best regards,
>>  Sergiy Radyakin
>>
>> On Wed, Nov 19, 2008 at 2:52 PM, Martin Weiss <martin.weiss1@gmx.de>
>> wrote:
>>>
>>> Well, if they share the same values, then the -encode- will lead to a
>>> redundancy because technically you would need only one -label- so that
>>>
>>> **************
>>> webuse hbp2, clear
>>>
>>> forv i =1/5{
>>> clonevar sex`i'=sex
>>> }
>>>
>>> encode sex, g(gender)
>>>
>>> ds sex?
>>>
>>> foreach var in `r(varlist)'{
>>> encode `var', g(gender`var') l(gender)
>>> }
>>>
>>> desc
>>> *****************
>>>
>>> you can reuse it with the -label- option to -encode-...
>>>
>>>
>>> HTH
>>> Martin
>>> _______________________
>>> ----- Original Message ----- From: "moleps islon" <moleps2@gmail.com>
>>> To: <statalist@hsphsun2.harvard.edu>
>>> Sent: Wednesday, November 19, 2008 8:30 PM
>>> Subject: st: -encode- help..
>>>
>>>
>>>> I've got 30 different text variables that all have the same possible
>>>> values. Is there an easy way to encode all 30 variables using the same
>>>> label or do I have to do it manually. Also is it possible, somehow, to
>>>> specify stata to start encoding with tha value 0 instead of 1 ?
>>>>
>>>> Best wishes,
>>>> Moleps
>>>> *
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>>>
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>
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