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RE: st: round off trouble


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: round off trouble
Date   Fri, 28 Nov 2008 13:18:26 -0000

You are quite right in the following sense. 

Local macros (N.B. _not_ local variables) are just named things with
string content. They do not possess formats. The question "What is the
format of this local macro?" has the answer: it doesn't have one. 

Macros just are. 

But you can use a -format- to convert one string into another. That is
shown by Maarten's example. 

Nick 
n.j.cox@durham.ac.uk 

Ashim Kapoor

Thank you for your email. I always thought, I think I read it on this
list that local variables are strings and can't be formatted.  Thank
you for your time.

On Fri, Nov 28, 2008 at 5:33 PM, Maarten buis <maartenbuis@yahoo.co.uk> 

> --- "Ashim Kapoor" wrote:
>> I have a variable called slope with has around 10 decimal points
>>
>> so I do replace slope=round(slope,.01) to round it off to the
>> nearest 2nd decimal place.
>>
>> Then I do local output=slope[_N]
>>
>> Trouble is EVEN after I do the round off I still get 10 decimal
>> places when I display the local macro " output " in a note in a
>> graph.
>
> see: -help extended_fcn- and the example below:
>
> *------------ begin example --------------
> sysuse auto, clear
> local bla = gear_ratio[_N]
> di "`bla'"
> local bla : display %9.1f gear_ratio[_N]
> di "`bla'"
> *------------ end example ----------------
> (For more on how to use examples I sent to the Statalist, see
> http://home.fsw.vu.nl/m.buis/stata/exampleFAQ.html )

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