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Re: st: dates question


From   Michael Eisenberg <meisenberg713@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: dates question
Date   Mon, 8 Oct 2012 08:45:29 -0700

Brilliant.  Thanks so much!

On Mon, Oct 8, 2012 at 2:12 AM, Nick Cox <njcoxstata@gmail.com> wrote:
> See [U] 24 for a brief introduction and -help dates and times- for
> fuller detail.
>
> If your variables are all numeric then
>
> gen dailydate = mdy(injmo, injday. injyr)
>
> will produce a daily date variable. Then
>
> format dailydate %td
>
> or
>
> formal dailydate %d
>
> will assign a default format for daily dates. You can tune that format
> using recipes given in the -help-.
>
> Note that (a) having a values in a variable that Stata will interpret
> as dates as you want and (b) assigning a format that displays a date
> variable as a recognisable date are quite separate in principle, as
> shown by the separate commands above.
>
> Nick
>
> On Mon, Oct 8, 2012 at 9:37 AM, Michael Eisenberg
> <meisenberg713@gmail.com> wrote:
>
>> I have what I hope will be a simple question regarding dates.
>>
>> I have separate columns for day of injury, month of injury, and year
>> of injury.  How can I merge these into one variable in date format?
>>
>> For example
>> injmo   03
>> injday  29
>> injyr  2001
>>
>> newvar 29mar2001
>> or
>> newvar 15063
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