|
|  |
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
RE: st: dropped observations after append
But shouldn't the variable type in the master set (dset1.dta) prevail,
so the missing would be the dset values from dset2.dta? And doesn't
Stata tell you it's seen that as a problem even though it goes ahead and
does it anyway?
(Hi, Michael - I think I knew you in grad school.)
Jen Marino
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Maarten buis
Sent: Sunday, March 19, 2006 4:43 PM
To: [email protected]
Subject: Re: st: dropped observations after append
Michael:
Is the variable dset in dset1.dta a string? (open dset1.dta and type
-desc dset- to find out) HTH, Maarten
--- Michael McCulloch <[email protected]> wrote:
> I have two datasets, (dset1.dta and dset2.dta).
> With dset1.dta, I append with the command: append using dset2.dta.
>
> dset1.dta has:
> id dset agev male meduse afev1
> 2 1 10 1 1 1.700833
> 6 1 11 0 0 2.084792
> 15 1 11 1 0 1.499583
> 18 1 7 1 0 1.183437
> 20 1 10 1 0 1.400417
>
> dset2.dta has:
> id dset agev male meduse afev1
> 2 0 10 1 0 -9
> 6 0 11 0 1 -9
> 15 0 11 1 1 -9
> 18 0 7 1 1 -9
> 20 0 10 1 1 -9
>
> After I append, why are values from the first dataset dset1.dta for
> the
> variable dset==1 are dropped?
> id dset wheeze cough meduse afev1 male agev height
> anysx
> 2 0 0 0 0 -9 1 10
137.922
> 0
> 2 . 0 0 1 1.700833 1 10
> 137.922 0
> 6 . 0 1 0 2.084792 0 11
> 150.876 1
> 6 0 0 1 1 -9 0 11
150.876
> 1
> 15 . 0 1 0 1.499583 1 11
> 141.986 1
> 15 0 0 1 1 -9 1 11
141.986
> 1
> 18 . 0 0 0 1.183437 1 7
> 120.396 0
> 18 0 0 0 1 -9 1 7
120.396
> 0
> 20 . 0 0 0 1.400417 1 10
> 150.114 0
> 20 0 0 0 1 -9 1 10
150.114 0
>
>
>
>
> Best wishes,
> Michael
>
>
> ____________________________________
>
> Michael McCulloch
> Pine Street Clinic
> 124 Pine Street, San Anselmo, CA 94960-2674
> tel 415.407.1357
> fax 415.485.1065
> email: [email protected]
> web: www.pinest.org
> www.pinestreetfoundation.org
>
>
>
>
>
> *
> * For searches and help try:
> * http://www.stata.com/support/faqs/res/findit.html
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
>
-----------------------------------------
between 1/2/2006 and 31/3/2006 I will be
visiting the UCLA, during this time the
best way to reach me is by email
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands
visiting adress:
Buitenveldertselaan 3 (Metropolitan), room Z214
+31 20 5986715
http://home.fsw.vu.nl/m.buis/
-----------------------------------------
___________________________________________________________
Win a BlackBerry device from O2 with Yahoo!. Enter now.
http://www.yahoo.co.uk/blackberry
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
