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SPSS command language questions

Posted on 2003-11-24
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ok.. this is an app not many here use (statistical applications).. SPSS ver 11.5

for reference the command reference manual (8 meg download) can be got from comunaware.com/pers/base.zip

try as I may I cannot find the assignment syntax to set a variable to the system missing value (this is represented by a .)

if I say

compute  var1 =.

it complains correctly that . is the command terminator.  and it doesnt like it if var1 is set to '.' which is a string type


my second question pertains to merging files (records with different variables across different files)
usually a merge is based on some key which is present in both files

but what if the following scenario is true:

Suppose there are 10 subjects, each with 100 lines (records) of data.
In another file I have one variable for each of the 10 subjects in 10 records (lines)
 
How do I merge the two files so that this new variable is repeated 100 times for each subject in the bigger data set ?  assume that both files have the same ten unique subject numbers (this is repeated 100 times per subject in the first file)

these are trivial programming problems but unfortunately it is not clear how to coax SPSS command language to do this
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Question by:nsriram
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cookre earned 250 total points
ID: 9815865
Maybe:
compute var1 = $SYSMIS.
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by:nsriram
ID: 9816160
very good guess if indeed it was that!  

I would give you half the points.. lets wait if someone else can tell me regarding the second point
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Author Comment

by:nsriram
ID: 9822679
I found the other half of the answer

MATCH FILES FILE = * / TABLE = 'fastlat.sav'/ BY subject.

assuming that * is the working file and fastlat.sav is the second smaller file. subject is used as the key.

admin.. please award cookre 250 points and close this thread.
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Expert Comment

by:cookre
ID: 9822730
You'll have to post a question in Community Support to do that.
http://www.experts-exchange.com/Community_Support/


*mod: That's fine with me.
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