... we used the following syntax: b.x1a.y1<-dea.boot(x1a,y1,NREP=1000,RTS="vrs", ORIENTATION="in") Vera -- View this message in context: http://r.789695.n4.nabble.com/Problem-with-dea-boot-under-R-3-0-1-tp4669964p4670271.html Sent from the R help mailing list archive at Nabble.com.