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Does anyone have an SPSS syntax that does "all possible subsets"
analysis for either Descriptive Discriminant Analysis or Predictive Discriminant Analysis? ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
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Leah, I found such when I needed to do all subsets regression for dominance analysis; the only minor tweaking you may need to do is for the directories (e.g., C:\temp), etc.....but otherwise works great..it can be found at the following:
http://www.spsstools.net/Syntax/RegressionRepeatedMeasure/DoAll-SubsetsRegressions.txt Dale Glaser, Ph.D. Principal--Glaser Consulting Lecturer/Adjunct Faculty--SDSU/USD/Alliant 3115 4th Avenue San Diego, CA 92103 phone: 619-220-0602 fax: 619-220-0412 email: [hidden email] website: www.glaserconsult.com From: Leah Anderson <[hidden email]> To: [hidden email] Sent: Monday, October 14, 2013 10:18 AM Subject: All Possible Subsets for DDA and/or PDA Does anyone have an SPSS syntax that does "all possible subsets" analysis for either Descriptive Discriminant Analysis or Predictive Discriminant Analysis? ===================== To manage your subscription to SPSSX-L, send a message to [hidden email] (not to SPSSX-L), with no body text except the command. To leave the list, send the command SIGNOFF SPSSX-L For a list of commands to manage subscriptions, send the command INFO REFCARD |
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I suspect that with a large number of variables and a large number of cases, that code will take a VERY long time to run. I would modify that to use a CORRELATION matrix for input to the MATRIX language. I would use MATRIX to generate indices for the combinations and SWEEP the desired columns to get the regression coefficients, R square etc. Wouldn't be that hard to modify it for other linear models such as DSC etc...
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