Date:         Wed, 11 Apr 2012 08:16:55 -0700
Reply-To:     "lori.andersen" <lori.andersen@GMAIL.COM>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         "lori.andersen" <lori.andersen@GMAIL.COM>
Subject:      Re: missing values in the DO IFcommand
In-Reply-To:  <201204111451.q3BEnu0l005450@waikiki.cc.uga.edu>
Content-Type: multipart/alternative;

You need to know what value has been assigned as "Missing" maybe it is a
period or a -999 or something.  What is the system missing value defined to
be?

On Wed, Apr 11, 2012 at 11:13 AM, Patricio Calderon-2 [via SPSSX
Discussion] <ml-node+s1045642n5633148h80@n5.nabble.com> wrote:

> Hi,
>
> I'm trying to create a new variable using the DO IF command and then
> COMPUTE
> to create the new variable.  However, I'm stuck when I'm trying to define
> a
> missing value. Here is an example:
>
> DO IF (DT_EVENT_first EQ MISSING).
>   COMPUTE CONTACTOK = 0.
> ELSE IF (DT_EVENT_first EQ DT_EVENT_last).
>   COMPUTE CONTACTOK = 1.
> ELSE IF (DT_EVENT_first NE DT_EVENT_last).
>   COMPUTE CONTACTOK = 2.
> END IF.
> EXECUTE.
>
> Clearly the "MISSING" above is wrong. What do I have to write to indicate
> that if a value is missing, the new variable should show a number zero.
>
> Thank you for your help,
> Patricio
>
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--
Lori Andersen
Ph.D. student, Educational Policy, Planning & Leadership
College of William & Mary
Williamsburg, VA


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