这SAS程序是什么意思?怎么看结果?结论是什么?
TheSASSystem08:37Wednesday,December8,20122TheLOGISTICProcedureAnalysisofMaximumLikeli...
The SAS System 08:37 Wednesday, December 8, 2012 2
TheLOGISTIC Procedure
Analysis of MaximumLikelihood Estimates
Standard Wald Standardized
Parameter DF Estimate Error Chi-Square Pr > ChiSq Estimate
Intercept 1 -1.6794 0.2517 44.5077 <.0001
X1 1 -0.00051 0.00170 0.0889 0.7655 -0.0324
OddsRatio Estimates
Point 95% Wald
Effect Estimate Confidence Limits
X1 0.999 0.996 1.003
Association of PredictedProbabilities and Observed Responses
Percent Concordant 37.5 Somers' D -.112
Percent Discordant 48.7 Gamma -.129
Percent Tied 13.8 Tau-a -.029
Pairs 6528 c 0.444
Wald Confidence Intervalfor Adjusted Odds Ratios
Effect Unit Estimate 95% Confidence Limits
X1 1.0000 0.999 0.996 1.003 展开
TheLOGISTIC Procedure
Analysis of MaximumLikelihood Estimates
Standard Wald Standardized
Parameter DF Estimate Error Chi-Square Pr > ChiSq Estimate
Intercept 1 -1.6794 0.2517 44.5077 <.0001
X1 1 -0.00051 0.00170 0.0889 0.7655 -0.0324
OddsRatio Estimates
Point 95% Wald
Effect Estimate Confidence Limits
X1 0.999 0.996 1.003
Association of PredictedProbabilities and Observed Responses
Percent Concordant 37.5 Somers' D -.112
Percent Discordant 48.7 Gamma -.129
Percent Tied 13.8 Tau-a -.029
Pairs 6528 c 0.444
Wald Confidence Intervalfor Adjusted Odds Ratios
Effect Unit Estimate 95% Confidence Limits
X1 1.0000 0.999 0.996 1.003 展开
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