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    On constructing 95% confidence ellipses for bivariate data in SAS - help!!

    Hi guys! I would very much like to plot / sketch / graph a 95% confidence ellipse using base SAS for a small data set I have, of size 9. I'm unsure of how to proceed. This is the two methods I tried to use without much success: proc princomp DATA=scores OUT=scores1 COVARIANCE...