Logistic regression examples using the sas system version 6 first edition 55201 tochtml1 14 14 14819 pm logistic regression examples using the sas system version 6 first edition contents credits acknowledgments introduction the example data sets the brands data set the chocs data set the diabetes data set the esr data set. Logistic regression also called a logit model is used to model dichotomous outcome variables in the logit model the log odds of the outcome is modeled as a linear combination of the predictor variables please note the purpose of this page is to show how to use various data analysis commands it . The following invocation of proc logistic illustrates the use of stepwise selection to identify the prognostic factors for cancer remission a significance level of 03 is required to allow a variable into the model slentry03 and a significance level of 035 is required for a variable to stay in the model slstay035a detailed account of the variable selection process is requested by . Testing linear hypotheses about the regression coefficients regression diagnostics scoring data sets conditional logistic regression exact conditional logistic regression input and output data sets computational resources displayed output ods table names ods graphics examples logistic procedure stepwise logistic regression and . Version info code for this page was tested in sas 93 exact logistic regression is used to model binary outcome variables in which the log odds of the outcome is modeled as a linear combination of the predictor variables it is used when the sample size is too small for a regular logistic
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