Multiple Regression in SPSS - University of Michigan
Multiple Regression in SPSS
* ******************************************************************
* SPSS EXAMPLE 3:
* MULTIPLE LINEAR REGRESSION AND DIAGNOSTICS
* *****************************************************************.
GET FILE="e:\510\2006\werner.sav".
*-------------------------------------------------------------------------COMPUTE A NEW VARIABLE.
COMPUTE WTALB = WEIGHT + ALB.
EXECUTE.
*-------------------------------------------------------------------------------DESCRIPTIVES.
DESCRIPTIVES
VARIABLES=chol age calcium acid alb weight wtalb
/STATISTICS=MEAN STDDEV MIN MAX .
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*---------------------------------------------------------------LISTWISE MISSING CORRELATIONS.
CORRELATIONS
/VARIABLES=CHOL AGE CALCIUM ACID ALB WEIGHT WTALB
/PRINT=TWOTAIL NOSIG
/STATISTICS DESCRIPTIVES
/MISSING=LISTWISE .
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*---------------------------------------------------------------PAIRWISE MISSING CORRELATIONS.
CORRELATIONS
/VARIABLES=CHOL AGE CALCIUM ACID ALB WEIGHT WTALB
/PRINT=TWOTAIL NOSIG
/STATISTICS DESCRIPTIVES
/MISSING=PAIRWISE .
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*-------------------------------------------------------------------------------SCATTER PLOT MATRIX.
GRAPH
/SCATTERPLOT(MATRIX)=CHOL AGE CALCIUM ACID ALB WEIGHT WTALB
/MISSING=LISTWISE .
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*------------------------------------------------------MULTIPLE REGRESSION CHECK COLLINEARITY.
REGRESSION
/MISSING LISTWISE
/STATISTICS COEFF OUTS R ANOVA COLLIN TOL
/CRITERIA=PIN(.05) POUT(.10)
/NOORIGIN
/DEPENDENT CHOL
/METHOD=ENTER AGE CALCIUM ACID ALB WEIGHT
/SCATTERPLOT=(*SDRESID ,*ZPRED )
/RESIDUALS HIST(ZRESID) NORM(ZRESID)
/SAVE PRED COOK RESID SDRESID DFFIT .
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*-------------------------------------MULTIPLE REGRESSION DEFINITE COLLINEARITY PROBLEM.
*-------------------------------------NOTE: SPSS REFUSES TO INCLUDE WEIGHT IN THE MODEL.
REGRESSION
/MISSING LISTWISE
/STATISTICS COEFF OUTS R ANOVA COLLIN TOL
/CRITERIA=PIN(.05) POUT(.10)
/NOORIGIN
/DEPENDENT CHOL
/METHOD=ENTER AGE CALCIUM ACID ALB WEIGHT WTALB.
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*--------------------------------------------------------------STEPWISE REGRESSION.
REGRESSION
/MISSING LISTWISE
/STATISTICS COEFF OUTS R ANOVA CHANGE
/CRITERIA=PIN(.05) POUT(.10)
/NOORIGIN
/DEPENDENT CHOL
/METHOD=STEPWISE AGE CALCIUM ACID ALB WEIGHT .
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*--------------------------------------------------------------BACKWARD SELECTION METHOD.
REGRESSION
/MISSING LISTWISE
/STATISTICS COEFF OUTS R ANOVA CHANGE
/CRITERIA=PIN(.05) POUT(.10)
/NOORIGIN
/DEPENDENT CHOL
/METHOD=BACKWARD AGE CALCIUM ACID ALB WEIGHT .
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*-------------------------------------------------------------ENTER VARIABLES IN BLOCKS.
REGRESSION
/MISSING LISTWISE
/STATISTICS COEFF OUTS ANOVA CHANGE
/CRITERIA=PIN(.05) POUT(.10) CIN(95)
/NOORIGIN
/DEPENDENT chol
/METHOD=ENTER AGE WEIGHT /METHOD=ENTER CALCIUM ACID /METHOD=ENTER ALB .
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