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Re: st: Time to maturity


From   Steve Nakoneshny <scnakone@ucalgary.ca>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: Time to maturity
Date   Tue, 18 Oct 2011 15:31:52 -0600

I appreciate the correction, Nick. Thanks.

On 2011-10-18, at 2:21 PM, Nick Cox wrote:

> Good advice, but for one detail. The difference between two daily
> dates is not itself a daily date, so the difference should not be
> assigned a %td format.
> 
> On Tue, Oct 18, 2011 at 8:05 PM, Ferdinand Siagian <fsiagian@maine.edu> wrote:
> 
>> Thanks Steve.
> 
> 
>> On 10/18/11 2:52 PM, Steve Nakoneshny wrote:
> 
>>> I would convert the date variables into Stata date format first, see -help
>>> date- for how to do this.
>>>> From there, -gen newdate= (maturity date - transaction date)- and
>>>> -format newdate %td- should get you there.
> 
> On 2011-10-18, at 12:46 PM, Ferdinand Siagian wrote:
> 
>>>> I have a data set with transaction dates and maturity dates in YYYYMMDD
>>>> format. The data Type is long and the format is %12.0g. I have been
>>>> trying to calculate the number of days from the transaction date to the
>>>> maturity date (or time to maturity) but could not find the best way to
>>>> do it. Example:
>>>> 
>>>> Transaction date        Maturity date
>>>> 20090120                20100520
>>>> 20100315                20110825
> 
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