The SAS System          13:03 Friday, December 1, 2006 258

 

                                        The STEPDISC Procedure

 

                            The Method for Selecting Variables is STEPWISE

 

                 Observations        35          Variable(s) in the Analysis        8

                 Class Levels         3          Variable(s) will be Included       0

                                                 Significance Level to Enter     0.01

                                                 Significance Level to Stay      0.01

 

 

                                       Class Level Information

 

                                Variable

                      _INTO_    Name        Frequency       Weight    Proportion

 

                      E         E                  13      13.0000      0.371429

                      L         L                   8       8.0000      0.228571

                      M         M                  14      14.0000      0.400000

 

                                            The SAS System          13:03 Friday,

December 1, 2006 259

 

                                        The STEPDISC Procedure

                                      Stepwise Selection: Step 1

 

                                   Statistics for Entry, DF = 2, 32

 

                        Variable    R-Square    F Value    Pr > F    Tolerance

 

                        FreqA         0.1028       1.83    0.1762       1.0000

                        FreqB         0.1011       1.80    0.1819       1.0000

                        FreqC         0.3185       7.48    0.0022       1.0000

                        ClustA        0.2417       5.10    0.0120       1.0000

                        ClustB        0.0607       1.03    0.3670       1.0000

                        ClustC        0.1200       2.18    0.1294       1.0000

                        dbhA          0.1967       3.92    0.0301       1.0000

                        dbhC          0.1423       2.65    0.0858       1.0000

 

                                   Variable FreqC will be entered.

 

                                  Variable(s) that have been Entered

 

                                                FreqC

 

 

                                       Multivariate Statistics

 

    Statistic                                       Value    F Value    Num DF    Den DF    Pr > F

 

    Wilks' Lambda                                0.681486       7.48         2        32    0.0022

    Pillai's Trace                               0.318514       7.48         2        32    0.0022

    Average Squared Canonical Correlation        0.159257


 

                                            The SAS System          13:03 Friday, December 1, 2006 260

 

                                        The STEPDISC Procedure

                                      Stepwise Selection: Step 2

 

                                 Statistics for Removal, DF = 2, 32

 

                              Variable    R-Square    F Value    Pr > F

 

                              FreqC         0.3185       7.48    0.0022

 

                                     No variables can be removed.

 

 

                                   Statistics for Entry, DF = 2, 31

 

                                     Partial

                        Variable    R-Square    F Value    Pr > F    Tolerance

 

                        FreqA         0.1291       2.30    0.1174       0.9999

                        FreqB         0.1492       2.72    0.0817       0.6335

                        ClustA        0.2430       4.98    0.0134       0.9999

                        ClustB        0.1034       1.79    0.1841       0.9772

                        ClustC        0.0958       1.64    0.2100       0.8711

                        dbhA          0.3324       7.72    0.0019       0.9967

                        dbhC          0.1440       2.61    0.0899       0.9830

 

                                    Variable dbhA will be entered.

 

                                  Variable(s) that have been Entered

 

                                              FreqC dbhA

 

 

                                       Multivariate Statistics

 

    Statistic                                       Value    F Value    Num DF    Den DF    Pr > F

 

    Wilks' Lambda                                0.454943       7.48         4        62    <.0001

    Pillai's Trace                               0.545433       6.00         4        64    0.0004

    Average Squared Canonical Correlation        0.272716


 

                                            The SAS System          13:03 Friday, December 1, 2006 261

 

                                        The STEPDISC Procedure

                                      Stepwise Selection: Step 3

 

                                 Statistics for Removal, DF = 2, 31

 

                                           Partial

                              Variable    R-Square    F Value    Pr > F

 

                              FreqC         0.4337      11.87    0.0001

                              dbhA          0.3324       7.72    0.0019

 

                                     No variables can be removed.

 

 

                                   Statistics for Entry, DF = 2, 30

 

                                     Partial

                        Variable    R-Square    F Value    Pr > F    Tolerance

 

                        FreqA         0.1054       1.77    0.1880       0.9704

                        FreqB         0.1572       2.80    0.0768       0.6325

                        ClustA        0.2434       4.83    0.0152       0.9938

                        ClustB        0.1486       2.62    0.0896       0.9731

                        ClustC        0.0977       1.62    0.2139       0.8688

                        dbhC          0.1436       2.51    0.0978       0.9802

 

                                     No variables can be entered.

 

                                    No further steps are possible.


 

                                            The SAS System          13:03 Friday, December 1, 2006 262

 

                                        The STEPDISC Procedure

 

                                      Stepwise Selection Summary

 

                                                                                     Average

                                                                                     Squared

        Number                     Partial                       Wilks'    Pr <    Canonical    Pr >

  Step      In  Entered  Removed  R-Square  F Value  Pr > F      Lambda  Lambda  Correlation    ASCC

 

     1       1  FreqC               0.3185     7.48  0.0022  0.68148552  0.0022   0.15925724  0.0022

     2       2  dbhA                0.3324     7.72  0.0019  0.45494288  <.0001   0.27271627  0.0004