I'm having trouble assessing goodness of fit of a conditional logistic regression model. Below is my code:   Libname BSIII "/home/u62213366/BSIII"; data lowbwt13; set BSIII.lowbwt13; run; proc print data=lowbwt13; run; proc logistic data=lowbwt13 desc; model low= smoke/expb; strata str; run;   Here is where I have fit a prediction model for 1:3 matched data using conditional logistic.  proc logistic data=lowbwt13 desc; model low= smoke ptd ui lwt ht/expb selection=backward ; strata str; run; OUTPUT--> leaves me ptd as the only covariate that met the criteria   /* Assess the goodness of fit of the model in (e) using Hosmer-Lemeshow test, Deviance and Pearson Chisquare */ proc logistic data=lowbwt13 desc; class ptd; model low= ptd / lackfit aggregate scale=none ; run;    My output doesn't show me any numbers for Hosmer-Lemeshow test, Deviance and Pearson Chisquare.  ... View more