Here I'm again! Imagine you have a bivariate normal sample (n=500) , with mean vector=(0,0)T and Covariance matrix (1,.9,.9,1). How could I construct an incomplete sample by deleting the second component Yi1 with probability: Pi= (e**2Yi1)/(1+e**2Yi1) ? best regards, Adriane -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._