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...se that sum(y)=0 i.e. res <- lm(o ~ 0 + x + y, contrasts=list(y=("contr.sum"))) However, R keeps returning only 8 coefficients for y. I assume that internally one coefficient is always set to zero. But when I impose "contr.sum", setting one coef to zero is no longer really nessasary, isn't it? So my questions is, if there is a way yo avoid that, or am I completely mistaken? greetings, joerg

Hi, I want to setup viaralator with squid and clamav. I have never set it up . Is anybody out there who has set ip up on CentOS 4.4. If so, Pls guide me with nessasary info. -- Thank you Indunil Jayasooriya -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20070205/91830e8d/attachment.html>