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Re: st: ym() date function is acting strangely
From
"William Gould, StataCorp LP" <[email protected]>
To
[email protected]
Subject
Re: st: ym() date function is acting strangely
Date
Thu, 15 Dec 2011 15:50:59 -0600
Gabi Huiber <[email protected]> writes,
> I do this:
>
> clear
> set obs 10
> gen year=2010
> gen month=_n
> gen date1=ym(year, month)
> format date1 %tm
>
> And I get this:
>
> year month date1
> 2010 1 23aug1961
> 2010 2 24aug1961
> 2010 3 25aug1961
> 2010 4 26aug1961
> 2010 5 27aug1961
> 2010 6 28aug1961
> 2010 7 29aug1961
> 2010 8 30aug1961
> 2010 9 31aug1961
> 2010 10 01sep1961
>
> How on Earth is that possible? A minute ago ym() was working fine, I swear.
I suspect Gabi did not type
. format date1 %tm
but instead typed
. format date1 %td
If Gabi had done that, the above output is exactly what he would get.
And all Gabi needs to do to get the correct output is now type
. format date1 %tm
and he will get the correct output. There is no problem with the -ym()-
function. It stored the right values, namely 600, 601, 602, ..., 609.
-- Bill
[email protected]
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