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Re: st: round off trouble


From   "Ashim Kapoor" <ashimkapoor@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: round off trouble
Date   Sat, 29 Nov 2008 11:49:46 +0530

Thank you Nick,
Ashim. : )

On Fri, Nov 28, 2008 at 6:48 PM, Nick Cox <n.j.cox@durham.ac.uk> wrote:
> 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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