Output from glogit.sas

Source
3 Graphs

Race and Politics in the 1980 Presidential vote 1 Observed Logits

                            The LOGISTIC Procedure
  Data Set: WORK.VOTE
  Response Variable (Events): REAGAN
  Response Variable (Trials): TOTAL
  Number of Observations: 14
  Link Function: Logit

                               Response Profile

                         Ordered  Binary
                           Value  Outcome      Count
                               1  EVENT          435
                               2  NO EVENT       498


     Model Fitting Information and Testing Global Null Hypothesis BETA=0

                              Intercept
                Intercept        and
  Criterion       Only       Covariates    Chi-Square for Covariates
  AIC            1291.155      1134.606         .
  SC             1295.994      1149.121         .
  -2 LOG L       1289.155      1128.606      160.550 with 2 DF (p=0.0001)
  Score              .             .         138.013 with 2 DF (p=0.0001)

                   Analysis of Maximum Likelihood Estimates

              Parameter Standard    Wald       Pr >    Standardized     Odds
  Variable DF  Estimate   Error  Chi-Square Chi-Square   Estimate      Ratio
  INTERCPT 1    -4.3857   0.4493    95.2620     0.0001            .     .
  RACE     1     2.4426   0.3731    42.8596     0.0001     0.429328   11.502
  VIEW     1     0.4719   0.0576    67.1291     0.0001     0.352079    1.603

        Association of Predicted Probabilities and Observed Responses
                  Concordant = 63.1%          Somers' D = 0.433
                  Discordant = 19.8%          Gamma     = 0.522
                  Tied       = 17.0%          Tau-a     = 0.216
                  (216630 pairs)              c         = 0.716

Race and Politics in the 1980 Presidential vote 2 Nominal Main Effects of Race and Political View (90% CI)

                               CATMOD PROCEDURE
       Response: VOTEFOR                     Response Levels (R)=     2
       Weight Variable: VOTES                Populations     (S)=    14
       Data Set: VOTES                       Total Frequency (N)=   933
       Frequency Missing: 0                  Observations  (Obs)=    28



                              POPULATION PROFILES
                                                 Sample
                       Sample    RACE    VIEW     Size
                       --------------------------------
                           1   White      1          14
                           2   White      2          71
                           3   White      3         116
                           4   White      4         302
                           5   White      5         154
                           6   White      6         142
                           7   White      7          27
                           8   NonWhite   1           7
                           9   NonWhite   2          17
                          10   NonWhite   3          26
                          11   NonWhite   4          33
                          12   NonWhite   5           9
                          13   NonWhite   6          10
                          14   NonWhite   7           5



                              RESPONSE PROFILES

                              Response  VOTEFOR
                              -----------------
                                   1    REAGAN
                                   2    CARTER




                MAXIMUM-LIKELIHOOD ANALYSIS-OF-VARIANCE TABLE

              Source                   DF   Chi-Square      Prob
              --------------------------------------------------
              INTERCEPT                 1        43.75    0.0000
              RACE                      1        41.37    0.0000
              VIEW                      6        67.84    0.0000

              LIKELIHOOD RATIO          6         3.45    0.7501

Race and Politics in the 1980 Presidential vote 3 Nominal Main Effects of Race and Political View (90% CI)

                   ANALYSIS OF MAXIMUM-LIKELIHOOD ESTIMATES

                                              Standard    Chi-
       Effect            Parameter  Estimate    Error    Square   Prob
       ----------------------------------------------------------------
       INTERCEPT                 1   -1.4324    0.2166    43.75  0.0000
       RACE                      2    1.1960    0.1859    41.37  0.0000
       VIEW                      3   -1.6144    0.6551     6.07  0.0137
                                 4   -1.2000    0.2857    17.64  0.0000
                                 5   -0.1997    0.2083     0.92  0.3377
                                 6    0.2779    0.1672     2.76  0.0965
                                 7    0.6291    0.1941    10.51  0.0012
                                 8    1.1433    0.2052    31.03  0.0000



Race and Politics in the 1980 Presidential vote 4 Linear Effect for Political View (90% CI)

                               CATMOD PROCEDURE
       Response: VOTEFOR                     Response Levels (R)=     2
       Weight Variable: VOTES                Populations     (S)=    14
       Data Set: VOTES                       Total Frequency (N)=   933
       Frequency Missing: 0                  Observations  (Obs)=    28



                              POPULATION PROFILES
                                                 Sample
                       Sample    RACE    VIEW     Size
                       --------------------------------
                           1   White      1          14
                           2   White      2          71
                           3   White      3         116
                           4   White      4         302
                           5   White      5         154
                           6   White      6         142
                           7   White      7          27
                           8   NonWhite   1           7
                           9   NonWhite   2          17
                          10   NonWhite   3          26
                          11   NonWhite   4          33
                          12   NonWhite   5           9
                          13   NonWhite   6          10
                          14   NonWhite   7           5



                              RESPONSE PROFILES

                              Response  VOTEFOR
                              -----------------
                                   1    REAGAN
                                   2    CARTER




                MAXIMUM-LIKELIHOOD ANALYSIS-OF-VARIANCE TABLE

              Source                   DF   Chi-Square      Prob
              --------------------------------------------------
              INTERCEPT                 1       101.39    0.0000
              RACE                      1        42.86    0.0000
              VIEW                      1        67.13    0.0000

              LIKELIHOOD RATIO         11         9.58    0.5688

Race and Politics in the 1980 Presidential vote 5 Linear Effect for Political View (90% CI)

                   ANALYSIS OF MAXIMUM-LIKELIHOOD ESTIMATES

                                              Standard    Chi-
       Effect            Parameter  Estimate    Error    Square   Prob
       ----------------------------------------------------------------
       INTERCEPT                 1   -3.1645    0.3143   101.39  0.0000
       RACE                      2    1.2213    0.1865    42.86  0.0000
       VIEW                      3    0.4719    0.0576    67.13  0.0000



Race and Politics in the 1980 Presidential vote 6 Separate slopes for Political View (90% CI)

                               CATMOD PROCEDURE
       Response: VOTEFOR                     Response Levels (R)=     2
       Weight Variable: VOTES                Populations     (S)=    14
       Data Set: VOTES                       Total Frequency (N)=   933
       Frequency Missing: 0                  Observations  (Obs)=    28



                              POPULATION PROFILES
                                                 Sample
                       Sample    RACE    VIEW     Size
                       --------------------------------
                           1   White      1          14
                           2   White      2          71
                           3   White      3         116
                           4   White      4         302
                           5   White      5         154
                           6   White      6         142
                           7   White      7          27
                           8   NonWhite   1           7
                           9   NonWhite   2          17
                          10   NonWhite   3          26
                          11   NonWhite   4          33
                          12   NonWhite   5           9
                          13   NonWhite   6          10
                          14   NonWhite   7           5



                              RESPONSE PROFILES

                              Response  VOTEFOR
                              -----------------
                                   1    REAGAN
                                   2    CARTER





Race and Politics in the 1980 Presidential vote 7 Separate slopes for Political View (90% CI)

                MAXIMUM-LIKELIHOOD ANALYSIS-OF-VARIANCE TABLE

              Source                   DF   Chi-Square      Prob
              --------------------------------------------------
              INTERCEPT                 1        26.55    0.0000
              RACE                      1         2.02    0.1556
              VIEW                      1         9.91    0.0016
              VIEW*RACE                 1         0.78    0.3781

              LIKELIHOOD RATIO         10         8.81    0.5504


                   ANALYSIS OF MAXIMUM-LIKELIHOOD ESTIMATES

                                              Standard    Chi-
       Effect            Parameter  Estimate    Error    Square   Prob
       ----------------------------------------------------------------
       INTERCEPT                 1   -2.7573    0.5351    26.55  0.0000
       RACE                      2    0.7599    0.5351     2.02  0.1556
       VIEW                      3    0.3787    0.1203     9.91  0.0016
       VIEW*RACE                 4    0.1060    0.1203     0.78  0.3781



8

Graphic output from glogit.sas

catplot of predict
[CATPLOT1 09/27/99 ]
catplot of predict
[CATPLOT2 09/27/99 ]
PLOT OF LOGIT * VIEW = RACE
[ GPLOT 09/27/99 ]