Dumb question, but what to ensure I have the application correct. When I have run my logistic regression and am staisfied with the results, how do I turn this into an equation to determine probabilities on new data? Is it simply taking the coefficient times the variable(s)?
proc logistic data=Neuralgia outmodel=sasuser.Model;
class Treatment Sex;
model Pain(event='Yes')= Treatment|Sex Age
/ selection=forward sle=.01;
Suppose Treatment and Age are the effects selected for the final model. You can score a data set which does not contain the variable Sex since the effect Sex is not in the model that the scoring is based on.