Copy/paste values in stacked dataset

[Oliver]

Hi everyone,

I have a multilevel (ie., stacked)  SPSS database with Level 1 and Level 2
variables ? In order to have a "clean/complete" dataset, the same Level 2
values need to be entered across all waves (see picture below). Thanks to
some of you on this forum, a syntax was given to me so that these data can
be copied easily. The syntax is shown below and it works perfectly. The only
problem is that the syntax will not work if a missing value was specified
(eg., -999). If this missing value is specified, the missing value will be
overwritten by the previous set of values. Is there any modification that
could be made to the syntax in order to leave the -999 or any other missing
value ? Thanks in advance !

DO REPEAT v = Age to MaritalStatus.
- IF MISSING(v) v = LAG(v).
END REPEAT.

<http://spssx-discussion.1045642.n5.nabble.com/file/t340718/Image.jpg>





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[Bruce Weaver]

I suspect you did not instruct SPSS to treat -999 as missing.  Try this:

MISSING VALUES Age to MaritalStatus (-999).
DO REPEAT v = Age to MaritalStatus.
- IF MISSING(v) v = LAG(v).
END REPEAT.



Oliver wrote

> Hi everyone,
>
> I have a multilevel (ie., stacked)  SPSS database with Level 1 and Level 2
> variables ? In order to have a "clean/complete" dataset, the same Level 2
> values need to be entered across all waves (see picture below). Thanks to
> some of you on this forum, a syntax was given to me so that these data can
> be copied easily. The syntax is shown below and it works perfectly. The
> only
> problem is that the syntax will not work if a missing value was specified
> (eg., -999). If this missing value is specified, the missing value will be
> overwritten by the previous set of values. Is there any modification that
> could be made to the syntax in order to leave the -999 or any other
> missing
> value ? Thanks in advance !
>
> DO REPEAT v = Age to MaritalStatus.
> - IF MISSING(v) v = LAG(v).
> END REPEAT.
>
> &lt;http://spssx-discussion.1045642.n5.nabble.com/file/t340718/Image.jpg&gt; 
>
>
>
>
>
> --
> Sent from: http://spssx-discussion.1045642.n5.nabble.com/
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-----
--
Bruce Weaver
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[Rich Ulrich]

I'm guessing here - You have -999 when data is Missing for Level 1, and you do want to

pick up the data from the previous person.  Your example shows the dot  (".") for system-

missing for your follow up rows.

If that is the problem, then your simple solution is to replace the MISSING( ) function

with the SYSMIS( ) function, so that the LAG( ) is only used within one person.

Else, I don't understand what you are getting at.

--

Rich Ulrich

---

From: SPSSX(r) Discussion <[hidden email]> on behalf of Oliver <[hidden email]>
Sent: Monday, September 23, 2019 12:12 AM
To: [hidden email] <[hidden email]>
Subject: Copy/paste values in stacked dataset

 

Hi everyone,

I have a multilevel (ie., stacked)  SPSS database with Level 1 and Level 2
variables ? In order to have a "clean/complete" dataset, the same Level 2
values need to be entered across all waves (see picture below). Thanks to
some of you on this forum, a syntax was given to me so that these data can
be copied easily. The syntax is shown below and it works perfectly. The only
problem is that the syntax will not work if a missing value was specified
(eg., -999). If this missing value is specified, the missing value will be
overwritten by the previous set of values. Is there any modification that
could be made to the syntax in order to leave the -999 or any other missing
value ? Thanks in advance !

DO REPEAT v = Age to MaritalStatus.
- IF MISSING(v) v = LAG(v).
END REPEAT.

<http://spssx-discussion.1045642.n5.nabble.com/file/t340718/Image.jpg>





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[Oliver]

Bruce & Rich,

Thanks to both of you for getting back to me. I was able to achieve what I
want because of your support and codes.

In case this could be useful for other users, I've attached an image of what
I wanted. As can be seen, I wanted values of -999 copied (automatically)
across all waves given that "Age" is a Level 2 variable.

Here's the syntax that solved the problem.

DO REPEAT v = Baseline_Demog_Age.
- IF MISSING(v) v = -999.
END REPEAT.

Thanks again to both of you.
O.

<http://spssx-discussion.1045642.n5.nabble.com/file/t340718/Do_Repeat.jpg>



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