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Re: R: st: R: if and if


From   "Ashim Kapoor" <ashimkapoor@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: R: st: R: if and if
Date   Thu, 13 Nov 2008 15:43:16 +0530

Thank you Carlo.

Ashim.

On Thu, Nov 13, 2008 at 3:35 PM, Carlo Lazzaro
<carlo.lazzaro@tiscalinet.it> wrote:
> Dear Ashim,
> unfortunately I am not aware of a SUPER cond Stata routine and -foreach- is
> still my best bet.
>
> Sorry I cannot be more helpful about this interesting query.
>
> Kind Regards,
> Carlo
> -----Messaggio originale-----
> Da: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] Per conto di Ashim Kapoor
> Inviato: giovedì 13 novembre 2008 10.52
> A: statalist@hsphsun2.harvard.edu
> Oggetto: Re: st: R: if and if
>
> Hello Carlo,
>
> cond would not be useful cos it can do ONLY 2 conditions. I want to be
> able to use it in MANY conditions. Is there a SUPER cond which can do
> that ?
>
> Thank you,
> Ashim
>
> On Thu, Nov 13, 2008 at 2:27 PM, Carlo Lazzaro
> <carlo.lazzaro@tiscalinet.it> wrote:
>> Dear Ashim,
>> would - help cond() - be useful for your research purposes?
>>
>> Kind Regards,
>> Carlo
>> -----Messaggio originale-----
>> Da: owner-statalist@hsphsun2.harvard.edu
>> [mailto:owner-statalist@hsphsun2.harvard.edu] Per conto di Ashim Kapoor
>> Inviato: giovedì 13 novembre 2008 8.56
>> A: statalist@hsphsun2.harvard.edu
>> Oggetto: st: if and if
>>
>> Hello everyone,
>>
>> I realize that there are 2 kinds if's in Stata.
>>
>> Type 1 : would be something like replace j = 2 if k==2
>> here the replace in j would happen ONLY in the corresponding
>> observation of k. THIS IS WHAT I WANT.
>>
>>
>> Type 2 : the programming if something like
>>
>> local j
>>
>> if `j'==2 {
>>
>> do something.
>>
>> }
>>
>> **************************************************************
>>
>> I guess I want to do something which is in between the above 2.
>>
>> I want to say the following : --
>>
>> replace j=2 if k==2
>> replace m=2 if k==2
>> replace n=2 if k==2
>>
>> in ONE shot.
>>
>> so I try : -
>> ************************************** Block A
>> if k==2 {
>> replace j=2
>> replace m=2
>> replace n=2
>> }
>> *********************************************
>> This does not work. Because k==2 would mean k==2 in ALL observations.
>> While I mean to say make j / m / n = 2 in those observations where k
>> is 2.
>>
>> How do I do this in a quick manner in Block A  ?
>>
>> I understand that I can always do :-
>>
>> foreach var of   j m n {
>> replace `var'=2 if k==2
>> }
>>
>> But is there a better way ?
>>
>> The reason I want this is the following  : -
>>
>> I want
>>
>> if k==2 {
>> replace j=1
>> replace m=5
>> replace n=89
>> }
>>
>> so the above method fails as I do not have the SAME value 2 to be put
>> in each of j / m /n.
>>
>> Any slick way of doing this ?
>>
>> Thank you,
>> Ashim
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