Thank you. You are very kind to teach me. ... View more

Dear lvm Thank you for your reply. I know little about SAS.Could you explain that a little more. "You probably want to look at residuals. Just add an output statement in NLIN like: output out=preds predicted=p residual=r student=s;" I run the sentences ,but I didn't get the residuals. why? how can use GPLOT or SGSCATTER get plot the studentized residuals versus predicted values? ... View more

MKhandelwal hi Thanks very much for your comments. But I think alpha design need use mixed model. Thank you very much.How kind you are! seia ... View more