Gracias...Appreciate it..
Moleps
On Thu, Dec 18, 2008 at 6:02 PM, Jeph Herrin <[email protected]> wrote:
>
> Yep, looks like opdate is 2205, not 2005:
>
> . di mdy(10,4,2005)-mdy(6,22,2205)
> -72944
>
>
>
>
> dr kardos laszlo wrote:
>>
>> moleps, looks like your fudate and pfudate in obs 83 are about two
>> centuries behind. check out the values of those observations without date
>> formatting, you will see negative integers if i'm right. generally, it is a
>> good idea to use 4-digit years when formatting dates.
>>
>> laszlo
>>
>> moleps islon wrote:
>>>
>>> IN generating the timevariabel for a cox model I get the follwing.
>>> Everything is perfect, except id 83. Any idea why??
>>>
>>> gen futime=fudate-opdate
>>> gen pfutime=pfudate-opdate
>>> gen coxtime=pfutime if pfutime>futime &pfutime<.
>>> replace coxtime=futime if pfutime==.
>>> replace coxtime=pfutime if futime==.
>>> list opdate fudate pfudate futime pfutime coxtime
>>>
>>>
>>> | opdate fudate pfudate futime pfutime coxtime |
>>> 76. | 10 Nov 04 18 Apr 05 23 May 08 159 1290 1290 |
>>> 77. | 25 May 04 16 Sep 04 23 May 08 114 1459 1459 |
>>> 78. | 24 Aug 04 01 Dec 04 30 Jun 08 99 1406 1406 |
>>> 79. | 28 Feb 05 22 Sep 05 26 Jun 08 206 1214 1214 |
>>> 80. | 06 Jan 05 13 Apr 05 15 Oct 08 97 1378 1378 |
>>> |----------------------------------------------------------------|
>>> 81. | 10 Jan 05 18 Apr 05 15 Sep 08 98 1344 1344 |
>>> 82. | 14 Apr 05 06 Jun 05 25 Jun 08 53 1168 1168 |
>>> 83. | 22 Jun 05 04 Oct 05 24 Jun 08 -72944 -71950 -71950 |
>>> 84. | 15 Jan 87 10 Feb 96 . 3313 . 3313 |
>>> 85. | 31 Aug 92 20 Mar 94 . 566 . 566 |
>>> |----------------------------------------------------------------|
>>>
>>> Regards,
>>> Moleps
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>>
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