Results: Linear Regression
The GLMSelect Procedure
Model Information
| Data Set | SASHELP.CARS |
|---|---|
| Dependent Variable | Wheelbase |
| Selection Method | Forward |
| Select Criterion | SBC |
| Stop Criterion | SBC |
| Effect Hierarchy Enforced | None |
Number of Observations
| Number of Observations Read | 428 |
|---|---|
| Number of Observations Used | 428 |
Class Level Information
| Class Level Information | ||
|---|---|---|
| Class | Levels | Values |
| Invoice | 425 | $9,875 $10,107 $10,144 $10,319 $10,642 $10,705 $10,896 $10,965 $11,116 $11,209 $11,410 $11,630 $11,802 $11,879 $12,116 $12,175 $12,205 $12,340 $12,482 $12,719 $12,781 $12,830 $12,849 $12,906 $12,996 $13,065 $13,393 $13,480 $13,650 $13,697 $13,717 … |
Dimensions
| Dimensions | |
|---|---|
| Number of Effects | 3 |
| Number of Parameters | 427 |
Model Building Summary
Forward Selection Summary
| Forward Selection Summary | ||||
|---|---|---|---|---|
| Step | Effect Entered |
Number Effects In |
Number Parms In |
SBC |
| * Optimal Value of Criterion | ||||
| 0 | Intercept | 1 | 1 | 1817.7901 |
| 1 | MPG_City | 2 | 2 | 1696.5138* |
Stop Reason
| Selection stopped at a local minimum of the SBC criterion. |
Stop Details
| Stop Details | ||||
|---|---|---|---|---|
| Candidate For |
Effect | Candidate SBC |
Compare SBC |
|
| Entry | Invoice | 2114.2673 | > | 1696.5138 |
Criterion Panel
Selected Model
Selected Model
The selected model is the model at the last step (Step 1).
Selected Effects
| Effects: | Intercept MPG_City |
|---|
The p-values for parameters and effects are not adjusted for the fact that the terms in the model have been selected and so are generally liberal.
ANOVA
| Analysis of Variance | |||||
|---|---|---|---|---|---|
| Source | DF | Sum of Squares |
Mean Square |
F Value | Pr > F |
| Model | 1 | 7591.39166 | 7591.39166 | 147.61 | <.0001 |
| Error | 426 | 21908 | 51.42824 | ||
| Corrected Total | 427 | 29500 | |||
Fit Statistics
| Root MSE | 7.17135 |
|---|---|
| Dependent Mean | 108.15421 |
| R-Square | 0.2573 |
| Adj R-Sq | 0.2556 |
| AIC | 2118.39555 |
| AICC | 2118.45215 |
| SBC | 1696.51379 |
Parameter Estimates
| Parameter Estimates | |||||
|---|---|---|---|---|---|
| Parameter | DF | Estimate | Standard Error |
t Value | Pr > |t| |
| Intercept | 1 | 124.301893 | 1.373538 | 90.50 | <.0001 |
| MPG_City | 1 | -0.804939 | 0.066253 | -12.15 | <.0001 |
Model: MODEL1
Dependent Variable: Wheelbase Wheelbase (IN)