Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

st: Re: getting the quotes right


From   "Zhiqiang Wang" <wang@menzies.edu.au>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Re: getting the quotes right
Date   Thu, 27 Jun 2002 14:24:22 +0930

See following codes may solve both problems.

use auto, clear
    local buicks (make==`"Buick Century"' | make==`"Buick Electra"' |
make==`"Buick Opel"') |
    local datsuns (make==`"Datsun 200"' | make==`"Datsun 210"') |
    local vws (make==`"VW Dasher"' | make==`"VW Rabbit"' | make==`"VW
Scirocco"')
    * please note single quates around double quates
    local brands buicks datsuns vws
    foreach brand1 of local brands {
        local all `all' ``brand1''
    }
    * please note the two single quates in ``brand1'' not double quates
    foreach brand of local brands {
        list price if `all'
    }
exit

There are other ways to solve the long line problem, such as using #delimit
use auto, clear
    #del ;
    local all1 make==`"Buick Century"' | make==`"Buick Electra"' |
make==`"Buick Opel"' |
    make==`"Datsun 200"' | make==`"Datsun 210"' | make==`"VW Dasher"' |
    make==`"VW Rabbit"' | make==`"VW Scirocco"' ;
    #d cr
    local brands buicks datsuns vws
    foreach brand of local brands {
        list price if `all1'
    }
exit


Zhiqiang
Menzies School of Health Research
Darwin Australia

----- Original Message -----
From: "Finne Håkon" <Hakon.Finne@sintef.no>
To: <statalist@hsphsun2.harvard.edu>
Sent: Thursday, June 27, 2002 8:09 AM
Subject: st: getting the quotes right


> Dear Statalisters,
>
> I need to generate a command that eventually has the following structure:
>
> list v1 if v2=="alpha" | v2=="beta" | v2=="gamma"
>
> except that it is much longer (so it wraps over several lines) and is
inside
> a loop, so it will be repeated with a different number of different
> conditional elements each time. So I try something like this (I write it
in
> the auto dataset terminology to facilitate testing):
>
> local buicks (make=="Buick Century" | make=="Buick Electra" | make=="Buick
> Opel")
> local datsuns (make=="Datsun 200" | make=="Datsun 210") |
> local vws (make=="VW Dasher" | make=="VW Rabbit" | make=="VW Scirocco")
> local brands `buicks' `datsuns' `vws'
> foreach brand of local brands {
> list price if `brand'
> }
>
> Of course this does not work. There are two issues (I think):
> 1) to make sure that
> foreach number of local one two three {
> makes the loop run three times and not eight or more
> 2) to get double quotes and compound double quotes in the right places.
>
> The diagnostic phase of this problem is made more difficult because with
> -display- the various quotes seem to be parsed differently from
with -list-
> .
>
> Please, someone?
>
> -- Håkon
> hakon.finne@sintef.no
> *
> *   For searches and help try:
> *   http://www.stata.com/support/faqs/res/findit.html
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
>

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index