Discriminant Analysis- Spss

Discriminant Notes Output Created Comments Input Data C: \Users\Student\Desktop\experiment for disciminant analysis.sav DataSet1 30 User-defined missing values are treated as missing in the analysis phase. In the analysis phase, cases with no user- or system-missing values for any predictor variable are used. Cases with user-, system-missing, or out-of-range values for the grouping variable are always excluded. DISCRIMINANT /GROUPS=R(1

2) /VARIABLES=Writtentest GD PI /ANALYSIS ALL /SAVE=CLASS /PRIORS EQUAL /STATISTICS=MEAN STDDEV RAW CORR TABLE CROSSVALID /CLASSIFY=NONMISSING POOLED. Processor Time Elapsed Time Variables Created or Dis_2 Modified Number of unweighted cases written to the working file after classification 0:00:00.031 0:00:00.021 Predicted Group for Analysis 1 30 2013-03-29T11:02:55.740

Active Dataset Filter Weight Split File N of Rows in Working Data File Definition of Missing

Missing Value Handling

Cases Used

Syntax

Resources

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[DataSet1] C:\Users\Student\Desktop\experiment for disciminant analysis.sav Analysis Case Processing Summary Unweighted Cases Valid Excluded Missing or out-of-range group codes At least one missing discriminating variable Both missing or out-ofrange group codes and at least one missing discriminating variable Total N 30 0 0 0 0 30 Group Statistics Valid N (listwise) R Pass Mean Writtentest GD PI Fail Writtentest GD PI Total Writtentest GD PI 88.0000 7.6087 7.7391 77.8571 7.2857 7.1429 85.6333 7.5333 7.6000 Std. Deviation 7.73422 1.11759 1.28691 5.75698 1.25357 1.06904 8.44244 1.13664 1.24845 Unweighted 23 23 23 7 7 7 30 30 30 Weighted 23.000 23.000 23.000 7.000 7.000 7.000 30.000 30.000 30.000 Percent 100.0 .0 .0 .0 .0 100.0

Total

Pooled Within-Groups Matrices Writtentest Correlation Writtentest GD PI 1.000 -.083 .336 GD -.083 1.000 .159 PI .336 .159 1.000

Analysis 1 Summary of Canonical Discriminant Functions Wilks' Lambda Test of … 1 Wilks' Lambda .717 Chi-square 8.832 df 3 Sig. .032

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Standardized Canonical Discriminant Function Coefficients Function 1 Writtentest GD PI 1.000 .287 -.048 Structure Matrix Function 1 Writtentest PI GD .960 .334 .196 Pooled within-groups correlations between discriminating variables and standardized canonical discriminant functions Variables ordered by absolute size of correlation within function. Canonical Discriminant Function Coefficients Function 1 Writtentest GD PI (Constant) .136 .250 -.039 -13.230 Unstandardized coefficients Functions at Group Centroids Function R Pass Fail 1 .335 -1.101

Unstandardized canonical discriminant functions evaluated at group means

Classification Statistics Classification Processing Summary Processed Excluded Missing or out-of-range group codes At least one missing discriminating variable Used in Output 30 0 0 30

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Prior Probabilities for Groups Cases Used in Analysis R Pass Fail Total Prior .500 .500 1.000 Unweighted 23 7 30 Weighted 23.000 7.000 30.000 Classification Results Predicted Group Membership Pass Fail Total R Original Count Pass 18 5 23 Fail 1 6 7 % Pass 78.3 21.7 100.0 Fail 14.3 85.7 100.0 a Cross-validated Count Pass 17 6 23 Fail 1 6 7 % Pass 73.9 26.1 100.0 Fail 14.3 85.7 100.0

a. Cross validation is done only for those cases in the analysis. In cross validation, each case is classified by the functions derived from all cases other than that case. b. 80.0% of original grouped cases correctly classified. c. 76.7% of cross-validated grouped cases correctly classified. b,c

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