Good morning,  I am using NHATS data with complex sampling design and weights. Does anyone have SAS code to plot the ROC and compute c-statistic with confidence intervals that properly consider the complex sampling design?  Could you share code if you have done this before.  Thanks  ... View more

Is there an option in SAS survey procedures to handle singleton PSUs? The default drops them. Are their options similar to those in stata? I have seen other posts ask this question but have not see an answer.  Thanks!  ... View more