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标题: 菜鸟求助：帮忙解释一下回归分析的结果 [打印本页]

作者: shiyiming 时间: 2007-7-28 22:38
标题: 菜鸟求助：帮忙解释一下回归分析的结果
sas给出的结果如下，想从分析结果中知道，三个变量L,E,LO与GS之间是否相关？谢谢

                              All variables left in the model are significant at the 0.1500 level.
                                       All variables have been entered into the model.
                                                Summary of Stepwise Selection
                     Variable    Variable    Number    Partial    Model
               Step Entered    Removed    Vars In R-Square R-Square    C(p)    F Value Pr > F
               1    L                                     1    0.7538    0.7538    41.2516    162.24 <.0001
               2    E                                     2    0.0454    0.7992    26.2382    11.76    0.0012
               3    LO                                     3    0.0647    0.8639    4.0000    24.24    <.0001
                                                            Analysis of Variance

                                                            Sum of          Mean
                        Source                DF       Squares       Square F Value Pr > F

                        Model                   3    260.94010    86.98003    107.88 <.0001
                        Error                   51    41.11900       0.80625
                        Corrected Total    54    302.0591
                                    Root MSE             0.89792 R-Square    0.8639
                                    Dependent Mean       0.80212 Adj R-Sq    0.8559
                                    Coeff Var          111.94348
                                                         Parameter Estimates

                                          Parameter    Standard                         Standardized
                     Variable    DF    Estimate       Error t Value Pr > |t|       Estimate

                     Intercept    1       0.47002       0.19491    2.41    0.0195             0
                     L             1       0.12907       0.00760    16.98    <.0001       0.98492
                     LO             1    -0.00225    0.00045718    -4.92    <.0001       -0.29451
                     E             1 -0.00098814    0.00018898    -5.23    <.0001       -0.27957

作者: shiyiming 时间: 2007-7-29 14:37
标题: Re: 菜鸟求助：帮忙解释一下回归分析的结果
可以看pvalue，一般选0.05，小于这个数就可以认为是对因变量影响显著

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