Dear Reeza, Thank you for your reply and helpful link. I have been following your suggested link and the example in the "Using PROC LOGISTIC and the NLEstimate macro" section. I have not been able to find an example using a continuous predictor variable. How will a continuous predictor variable change the application of the NLEstimate macro? I would like some guidance on how to write the datalines for the data set specified in the fdata=fd NLEstimate macro parameter. Please see the "shownames" in the screenshot attached. I am also unsure of my degrees of freedom parameter in the NLEstimate macro. data fd; length label f $32767; infile datalines delimiter='|'; input label f; datalines; P(3)/P(1)| exp(b_p1+b_p4) P(4)/P(1)| exp(b_p2+b_p5) P(5)/P(1)| exp(b_p3+b_p6) P(3)/P(4)| exp(b_p1+b_p4-b_p2-b_p5) P(3)/P(5)| exp(b_p1+b_p4-b_p3-b_p6) P(4)/P(5)| exp(b_p2+b_p5-b_p3-b_p6); %NLEstimate(instore=NLE, fdata=fd, df=?) Thank you! Suze
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