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  • 1.  TURF Analysis not running output tables

    Posted Mon September 09, 2024 12:28 PM

    Hi all, I'm trying to run TURF Analysis by Analyze -> Descriptive Statistics -> TURF Analysis. But I'm not getting any tables in the Output window. I've checked my variables are correct and have uninstalled and reinstalled TURF in Extensions Hub. I've also tried running the below syntax but still nothing, no error message either. A simple Descriptives works so I do get tables for some analysis, just not TURF. What could be causing the issue? Thank you!

    SPSSINC TURF VARIABLES = Var1 Var2 Var3 Var4 Var5 Var6 Var7  FORCE=0
    /OPTIONS BESTN = 900 NUMBERTODISPLAY = 900 CRITERIA = 1 PLOT=YES
    REMOVALCYCLES = 0 MAXSETS=5000000
    /HEATS USEHEATS=YES
    /IMPORTANCE STRICT=YES.



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    Isabella X
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  • 2.  RE: TURF Analysis not running output tables

    Posted Mon September 09, 2024 12:36 PM
    I am away from my computer for the next week, but it looks to me like you are asking for the best 900 choices, which does not make sense.  Typically it would be a number like 3.  But I might be misremembering the syntax definition (even though I wrote the procedure).

    I can look at this when I return.
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    Original Message


  • 3.  RE: TURF Analysis not running output tables

    Posted Sun September 15, 2024 11:22 AM
    Back home, checking the syntax, you are asking for the best combinations of 900 variables. 

    BESTN specifies the maximum group size, i.e., the maximum number of combinations of variables, that will be analyzed, including any forced variables.

    I expect that what you are seeing is an attempt to construct these groups of 900, which would take a really long time.  It would probably complete if  you let it run for a really long time, depending on the dataset, but it is probably not what you want.  If you want to go further with this, I would need to see the data and understand your goal better.

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    Original Message