Multiple Mann-Whitney tests

 

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* "multiple Mann-Whitney tests.SPS" 

*(Q) I have a problem with a macro:

DEFINE multi(depvar=!CHAREND ('/') /factor=!CHAREND ('/') /min=!CHAREND
('/') /max=!CMDEND ).
DO IF $CASENUM=1.
WRITE OUTFILE "c:\\temp\\multiman.sps"
/"NPAR TESTS".
LOOP #I=!min to !max-1.
LOOP #J=#I+1 to !max.
WRITE OUTFILE "c:\\temp\\multiman.sps"
/ "  /M-W= !depvar BY !factor (" #I #J ")".
END LOOP.
END LOOP.
WRITE OUTFILE "c:\\temp\\multiman.sps" /".".
END IF.
EXECUTE.
INCLUDE FILE="c:\\temp\\multiman.sps".
!ENDDEFINE.

Its purpose is to perform multiple Mann-Whitney tests after a
Kruskal-Wallis. As SPSS refuses to run statistical analyses inside any
loop, I have tried to use loops to write a syntax file (multiman.sps)
with the whole set of instructions and then run it with  INCLUDE.

* Example *.

DATA LIST LIST /actype (F8.0) glucose (F8.0).
BEGIN DATA
1 51
1 56
1 58
1 60
1 62
2 60
2 65
2 66
2 68
2 68
3 69
3 73
3 74
3 78
3 79
4 70
4 75
4 76
4 77
4 79
END DATA.

multi depvar=glucose /factor=actype /min=1 /max=4.

When I try to execute it, I get an error message saying that !depvar and
!factor are recognized only inside a macro.

So, the problem is:

The "multiman.sps" file looks like this:

NPAR TESTS
  /M-W= !depvar BY !factor (    1.00    2.00)
  /M-W= !depvar BY !factor (    1.00    3.00)
  /M-W= !depvar BY !factor (    1.00    4.00)
  /M-W= !depvar BY !factor (    2.00    3.00)
  /M-W= !depvar BY !factor (    2.00    4.00)
  /M-W= !depvar BY !factor (    3.00    4.00)
.

In order to make it work, I would like "multiman.sps" look like :

NPAR TESTS
  /M-W= glucose BY actype  (    1.00    2.00)
  /M-W= glucose BY actype  (    1.00    3.00)
  /M-W= glucose BY actype  (    1.00    4.00)
  /M-W= glucose BY actype  (    2.00    3.00)
  /M-W= glucose BY actype  (    2.00    4.00)
  /M-W= glucose BY actype  (    3.00    4.00)
.

How can I write the variable names in multiman.sps?



**************************************************.
*(A) Posted by rlevesque@videotron.ca to SPSSX-L on 2002/01/03.
**************************************************.

SET MPRINT=no.
*////////////////.
DEFINE multi(depvar=!CHAREND('/') /factor=!CHAREND('/') 
	/min=!CHAREND('/') /max=!CMDEND)
STRING depvar factor(A8).
COMPUTE depvar=!QUOTE(!depvar).
COMPUTE factor=!QUOTE(!factor).
DO IF $CASENUM=1.
WRITE OUTFILE "c:\\temp\\multiman.sps" /"NPAR TESTS".
LOOP #I=!min to !max-1.
LOOP #J=#I+1 to !max.
WRITE OUTFILE "c:\\temp\\multiman.sps"
 /"  /M-W= "depvar" BY "factor" (" #I #J ")".
END LOOP.
END LOOP.
WRITE OUTFILE "c:\\temp\\multiman.sps" /".".
END IF.
EXECUTE.
INCLUDE FILE="c:\\temp\\multiman.sps".
!ENDDEFINE.
*////////////////.

* Example *.

DATA LIST LIST /actype (F8.0) glucose (F8.0).
BEGIN DATA
1 51
1 56
1 58
1 60
1 62
2 60
2 65
2 66
2 68
2 68
3 69
3 73
3 74
3 78
3 79
4 70
4 75
4 76
4 77
4 79
END DATA.

SET MPRINT=yes.
multi depvar=glucose /factor=actype /min=1 /max=4.
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