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RE: st: macro issue


From   "Dherani, Mukesh" <M.K.Dherani@liverpool.ac.uk>
To   "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu>
Subject   RE: st: macro issue
Date   Wed, 6 Mar 2013 14:18:00 +0000

Thank you Nick.
No I am using it in the same do file for same analysis.

local x var1 var2 varn  // first I ran this command 
logistic y `x'   //  then I ran this command in the same file and result is blank

for -if-

local x var1 var2 varn  // first I ran this command 
logistic y `x' if intervention==1  //  then I ran this command, I get results for intervention only, unless I select both lines and run.


BW,m


-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Nick Cox
Sent: 06 March 2013 12:58
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: macro issue

At a guess you are defining a -local- macro in one place and trying to use it in another.

A local macro is only visible in the same place -- one might say locale -- in which it is defined, meaning

the _same_ interactive session

the _same_ do-file

the _same_  block of commands in the do-file editor

the _same_ program.

The way to remember it is that that is what -local- means!

Note that -if- is not an option. You don't mention how you are using -if-, but it is either a qualifier or a command.

Nick

On Wed, Mar 6, 2013 at 12:49 PM, Dherani, Mukesh <M.K.Dherani@liverpool.ac.uk> wrote:

> I am new to macro.  I am trying to carryout logistic regression with a 
> number of options using if option, however, I am not getting my 
> command being carried out. Below is what I am trying to do
>
> If I use
> local x var1 var2 varn
> logistic y `x'   // when both of the rows are selected and run simultaneously in do file then command proceeds,
>
> otherwise it returns without any results as below:
>
> local x var1 var2 varn  // first ran this command
>
> logistic y `x'   // then this. Result is blank..
>
> I am using stata 10.
> what is my mistake? I tried looking at FAQ but cannot simplify my query and=  got a number of answers not related to my issue.  thank you in advance.
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