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I saw a Help e-mail related to MLE. Does R have a probability weighted method (PWM) estimator function? I can't seem to find anything on PWM, unless my eyes are playing trick on me. [[alternative HTML version deleted]]

There's a funny inconsistency in how t.test handles paired=T or paired=F. If x and y parameters are lists, paired=F works, but paired=T doesn't. > lg=read.csv("my.csv") > a = subset(lg, condition=="a")["score"] > b = subset(lg, condition=="b")["score"] > t.test(a,b) > t.test(a,b, paired=TRUE) Error in `[.data.frame`(y, yok)

...,filippo=0A= audio:x:17:root,marcoa,roberto,paolo,massimo,edi,stefano,filippo=0A= at:x:25:at=0A= lnx:x:27:=0A= mdom:x:28:=0A= yard:x:29:=0A= dosemu:x:30:=0A= firewall:x:31:=0A= public:x:32:=0A= video:x:33:marcoa,roberto,paolo,massimo,edi,stefano,filippo=0A= informix:x:34:informix=0A= game:x:40:=0A= xok:x:41:=0A= trusted:x:42:=0A= modem:x:43:=0A= named:x:44:named=0A= postfix:x:51:postfix=0A= dbmaker:x:52:=0A= fix:x:53:informix=0A= oinstall:x:54:=0A= dba:x:55:oracle=0A= localham:x:56:dpbox=0A= logmastr:x:57:=0A= codine:x:58:codadmin=0A= maildrop:x:59:=0A= perforce:x:60:perforce=0A= sapdb:x:61:sapdb...