Output from pca1.sas	Source 0 Graphs

           Mean temperature in January and July for selected cities          1

               Plot of JULY*JAN$CTY.  Symbol points to label.

95.0 +
     |
     |
     |
     |                                                   > PHO
90.0 +
     |
     |
     |
     |
85.0 +                                             > DAL
     |
JULY |                                            EL  HOU <
     |                                     > OKL  ^  > JAv > NEW         > MIA
     |                               > WIC NAS> LIT> COL MOB > JAC
80.0 +                               ST ALB ^  > MEM
     |                        KAN <  ^   ^> WAS > CHA
     |                         SAL PHNEWRIC <  2> ATL
     |                   OMA <    ^BAL22 LOU  NORAL
     |                       PEO IND >>CWIL
75.0 +               DES <    ^COL^> BOv > CHA     > SAC
     |                        DET ^BOS ATL
     |              > SIO  HAR <^PR^> DEN
     |            > MIN ALB <> CHI2 PIT
     |        > BIS     MIL  BUF > CLE
70.0 +             BUR < ^ v  ^> SPO
     |                  CON> GRE v    > REN
     |                      > POR CHE
     |                                      > POR
     |         > DUL
65.0 +
     |              > SAU
     |
     |
     |
60.0 +
     -+---------+---------+---------+---------+---------+---------+---------+-
     0.0      10.0      20.0      30.0      40.0      50.0      60.0      70.0

                                        JAN

NOTE: 6 label characters hidden.

           Mean temperature in January and July for selected cities          2

                         Principal Component Analysis

      64 Observations
       2 Variables

                              Simple Statistics

                                     JULY               JAN

                   Mean       75.60781250       32.09531250
                   StD         5.12761910       11.71243309

                              Covariance Matrix

                                     JULY               JAN

                   JULY        26.2924777        46.8282912
                   JAN         46.8282912       137.1810888

                        Total Variance = 163.47356647

                     Eigenvalues of the Covariance Matrix

               Eigenvalue      Difference      Proportion      Cumulative

    PRIN1         154.311         145.148        0.943948         0.94395
    PRIN2           9.163            .           0.056052         1.00000

                                 Eigenvectors

                                    PRIN1         PRIN2

                       JULY      0.343532      0.939141
                       JAN       0.939141      -.343532

           Mean temperature in January and July for selected cities          3
                         PLOT OF PRINCIPAL COMPONENTS
               (Just a rotation since # components=#variables)

              Plot of PRIN2*PRIN1$CTY.  Symbol points to label.

PRIN2 |                              |
      |                              |
      |                              |
      |                              |
      |                              |
      |                              |
      |                              |
      |                              |
      |                              |
      |                              |
 10.0 +                              |
      |                              |
      |                              |                      > PHO
      |                              |
      |                              |
      |                              |
  5.0 +                      > OMA   |> WIC
      |            > SIO > DES    > KAN    > OKL    > DAL
      |  BIS <   > MIN               > ST    LIT
      |                  PEO <    > SAL ALBNAS^   > EL
      |                           NEW|BAL2 W^S MEM COL
      |                  ALB IND <CIN^v2 LOU  ^    ^ > JAC
  0.0 +----------BUR-<-CHI^<->vHARv-^>PWIL-v-->-NOR---HOU-<-------------------
      |                > MIL DET 2BOI> ATLRIC v> CHA MOB < > NEW
      |    > DUL    CON 2 GRE COvB>SDENv   RAL > ATL
      |                BUF < PR>vCLE |CHA                   > JAC
      |             POR <    v PIT   |
      |                   SPO > CHE  |
 -5.0 +         > SAU                |           > SAC
      |                            > REN                                > MIA
      |                              |
      |                              |
      |                              |
      |                              |
  -10 +                              |  > POR
      |                              |
      -+---------+---------+---------+---------+---------+---------+---------+
      -30       -20       -10       0.0      10.0      20.0      30.0     40.0

                                        PRIN1

NOTE: 5 label characters hidden.