PEV

Hi Arthur!
 
We have an xfa MET model with two predict lines:
 
predict Trial Clone !onlyuse xfa(Trial,1).Clone
predict Trial Clone
 
In the pvs file the 2 overall standard error of the difference values we
obtain are:
.66
.70
 
My question is why are these 2 values not equal to the average of the
individual values which are .47 and .51?
 
Thanks
 
Regards
 
Jo
 

Joanne Stringer

Senior Biometrician

BSES Limited

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Received on Thu Apr 08 2008 - 09:53:20 EST