IDS 594 (Sclove) / Fall, 2002

CLASSIFICATION
Discriminant Analysis for Fisher Iris Data

four variables:  petal and sepal length and width
for each of 50 cases in each of 3 species

MINITAB
Worksheet size: 100000 cells

—————   08/21/2002 9:34:51 PM   ————————————————————


Welcome to Minitab, press F1 for help.
Retrieving project from file: C:\Program Files\MTBWIN\Data\iris.MPJ

Discriminant Analysis: C5 versus C1, C2, C3, C4


Linear Method for Response:   C5      
Predictors:  C1  C2  C3  C4  

Group        1        2        3
Count       50       50       50

Summary of Classification

Put into     ....True Group....
Group            1        2        3
1               50        0        0
2                0       48        1
3                0        2       49
Total N         50       50       50
N Correct       50       48       49
Proportion   1.000    0.960    0.980 

N =  150     N Correct =  147     Proportion Correct = 0.980

Squared Distance Between Groups
                1        2        3
1           0.000   89.864  179.385
2          89.864    0.000   17.201
3         179.385   17.201    0.000

Linear Discriminant Function for Group
                1        2        3
Constant   -85.21   -71.75  -103.27
C1          23.54    15.70    12.45
C2          23.59     7.07     3.69
C3         -16.43     5.21    12.77
C4         -17.40     6.43    21.08

Summary of Misclassified Observations

Observation     True     Pred    Group     Squared   Probability
               Group    Group             Distance
   71 **           2        3        1     130.862         0.000
                                     2       8.670         0.253
                                     3       6.507         0.747
   84 **           2        3        1     149.030         0.000
                                     2       8.439         0.143
                                     3       4.864         0.857
  134 **           3        2        1     133.067         0.000
                                     2       5.253         0.729
                                     3       7.236         0.271