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Re: st: Fwd: how to use the label of oldvar to name newvar


From   anne broe <annebroe@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Fwd: how to use the label of oldvar to name newvar
Date   Sun, 14 Apr 2013 22:21:41 +0100

To be able to make a prevalence for each drug using collapse (sum)


2013/4/14 Nick Cox <njcoxstata@gmail.com>:
> Why do (you think) you need 40 new variables?
> Nick
> njcoxstata@gmail.com
>
>
> On 14 April 2013 20:07, anne broe <annebroe@gmail.com> wrote:
>> I have tried to egen, group option with the label, and that ends up
>> with the same problem as when I just use the encode option.
>>
>> My data looks like this
>>
>> atc
>> "aaabbc01"
>> "aaabcc02"
>> "aaabbc04"
>> "bbbcdd01"
>> etc (40 different total)
>>
>> When I use encode atc, gen(n_atc) it becomes
>> n_atc
>> 1        with value label "aaabbc01"
>> 2        with value label "aaabcc02"
>> 3        with value label "aaabbc04"
>> etc
>>
>> Then I have used gen atc_`xx' = 1 if n_atc==`xx'                //xx
>> being the values of n_atc (1-40)
>> But instead of atc_xx I would like my 40 new variables to be named
>> after the original string values e.g. the first var will then be named
>> "aaabbc01"
>>
>> hope you can help me :)
>>
>> 2013/4/14 Nick Cox <njcoxstata@gmail.com>:
>>> Alternatively, you may just be missing out on -egen, group()- with the
>>> -label()- option.
>>> Nick
>>> njcoxstata@gmail.com
>>>
>>>
>>> On 14 April 2013 14:34, Nick Cox <njcoxstata@gmail.com> wrote:
>>>> When you say "the label" are you referring to value labels or variable labels?
>>>>
>>>> Can you give an equivalent example with a dataset we can all access e.g.
>>>>
>>>> sysuse auto
>>>> Nick
>>>> njcoxstata@gmail.com
>>>>
>>>>
>>>> On 14 April 2013 14:29, anne broe <annebroe@gmail.com> wrote:
>>>>> Dear all
>>>>>
>>>>> I am encoding a string var atc to a numeric var n_atc to enable the
>>>>> use of forvalues.
>>>>> In each loop i generate a newvar called atc_`xx' if atc== `xx' and
>>>>> collapse (sum) of this variable.
>>>>> My problem however that instead of atc_`xx' I would like the variable
>>>>> to be named after the original string var atc which equals the label
>>>>> of n_atc.
>>>>>
>>>>> Is there anyway you can use the `xx' to identify to variable and then
>>>>> name it after the label?
>>>>>
>>>>> Hope someone can help me
>>>>> Thanks
>>>>> Anne
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