If I were to write the diagnostics myself, could I then obtain credible significance tests?    I would have to copy the three sections of proc rsreg into a logistic regression framework: 1) model fitting and analysis of variance, including lack-of-fit testing, to estimate parameters 2) canonical analysis to investigate the shape of the predicted response surface 3) ridge analysis to search for the region of optimum response Does anybody know of any SAS guides to facilitate this? ... View more

Thanks! I'll give it a try.   ... View more

Thank you for your reply!   My goal is to look at the interplay between a certain value of an employer (=variable X1) and employee (variable X2), on the occurrence of a promotion for the employee (variable Y).   Am I right to presume that the proc rsreg statement below can be replaced by the following proc logistic statement?   proc rsreg; model y=x1 x2; run;   proc logistic data=file1; model y(event='1')= x1 x1*x1                                 x2 x1*x2 x2*x2; run; And are there alternative statements to proc rsreg which allow the investigation of the shape of the response surface and the search for a optimum response in the response surface in an logistic regression model?   ... View more