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Re: st: test the format isdate


From   Nick Cox <njcoxstata@gmail.com>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: test the format isdate
Date   Mon, 16 Dec 2013 14:40:39 +0000

way to think more generally, as dates are typically defined only by
their display formats.

ds, has(format %d*)

or

ds, has(format %td*)

would be simple examples.

-findname- (SJ) is of the same flavour, but more versatile.

Note that -tostring- is a Stata command, not a Stata function.
-isnumeric- (origin not explained by you) is presumably a Stata
command, not a Stata macro. Using terminology from outside Stata is
likely to confuse or bemuse.

All that said, -tostring- won't usefully save numeric date variables
as string dates, unless you specify a date format.
Nick
njcoxstata@gmail.com


On 16 December 2013 14:06, rasool.bux <rasool.bux@aku.edu> wrote:
> Dear Statalist,
>
> I want to test the format of a variable in a program for conversion to string in a loop using the tostring function. If the format of a variable is %td then I want to save it in a string variable by using the tostring function.
>
> I have searched web I found the macro -isnumeric- . But I want to test the format also i.e. -isdate-
>
> Kindly suggest me in this regard.
>
> Thanks
> Rasool Bux
>
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